diff --git a/RAII_Samples/CreateDebugUtilsMessenger/CreateDebugUtilsMessenger.cpp b/RAII_Samples/CreateDebugUtilsMessenger/CreateDebugUtilsMessenger.cpp
index 51a95dd..08b6782 100644
--- a/RAII_Samples/CreateDebugUtilsMessenger/CreateDebugUtilsMessenger.cpp
+++ b/RAII_Samples/CreateDebugUtilsMessenger/CreateDebugUtilsMessenger.cpp
@@ -42,7 +42,7 @@ VKAPI_ATTR VkBool32 VKAPI_CALL debugMessageFunc( VkDebugUtilsMessageSeverityFlag
   {
     message << "\t"
             << "Queue Labels:\n";
-    for ( uint8_t i = 0; i < pCallbackData->queueLabelCount; i++ )
+    for ( uint32_t i = 0; i < pCallbackData->queueLabelCount; i++ )
     {
       message << "\t\t"
               << "labelName = <" << pCallbackData->pQueueLabels[i].pLabelName << ">\n";
@@ -52,7 +52,7 @@ VKAPI_ATTR VkBool32 VKAPI_CALL debugMessageFunc( VkDebugUtilsMessageSeverityFlag
   {
     message << "\t"
             << "CommandBuffer Labels:\n";
-    for ( uint8_t i = 0; i < pCallbackData->cmdBufLabelCount; i++ )
+    for ( uint32_t i = 0; i < pCallbackData->cmdBufLabelCount; i++ )
     {
       message << "\t\t"
               << "labelName = <" << pCallbackData->pCmdBufLabels[i].pLabelName << ">\n";
@@ -62,7 +62,7 @@ VKAPI_ATTR VkBool32 VKAPI_CALL debugMessageFunc( VkDebugUtilsMessageSeverityFlag
   {
     message << "\t"
             << "Objects:\n";
-    for ( uint8_t i = 0; i < pCallbackData->objectCount; i++ )
+    for ( uint32_t i = 0; i < pCallbackData->objectCount; i++ )
     {
       message << "\t\t"
               << "Object " << i << "\n";
diff --git a/RAII_Samples/EnableValidationWithCallback/EnableValidationWithCallback.cpp b/RAII_Samples/EnableValidationWithCallback/EnableValidationWithCallback.cpp
index 857b2d6..502f38f 100644
--- a/RAII_Samples/EnableValidationWithCallback/EnableValidationWithCallback.cpp
+++ b/RAII_Samples/EnableValidationWithCallback/EnableValidationWithCallback.cpp
@@ -68,7 +68,7 @@ VKAPI_ATTR VkBool32 VKAPI_CALL debugMessageFunc( VkDebugUtilsMessageSeverityFlag
   if ( 0 < pCallbackData->queueLabelCount )
   {
     message += std::string( "\t" ) + "Queue Labels:\n";
-    for ( uint8_t i = 0; i < pCallbackData->queueLabelCount; i++ )
+    for ( uint32_t i = 0; i < pCallbackData->queueLabelCount; i++ )
     {
       message += std::string( "\t\t" ) + "labelName = <" + pCallbackData->pQueueLabels[i].pLabelName + ">\n";
     }
@@ -76,14 +76,14 @@ VKAPI_ATTR VkBool32 VKAPI_CALL debugMessageFunc( VkDebugUtilsMessageSeverityFlag
   if ( 0 < pCallbackData->cmdBufLabelCount )
   {
     message += std::string( "\t" ) + "CommandBuffer Labels:\n";
-    for ( uint8_t i = 0; i < pCallbackData->cmdBufLabelCount; i++ )
+    for ( uint32_t i = 0; i < pCallbackData->cmdBufLabelCount; i++ )
     {
       message += std::string( "\t\t" ) + "labelName = <" + pCallbackData->pCmdBufLabels[i].pLabelName + ">\n";
     }
   }
   if ( 0 < pCallbackData->objectCount )
   {
-    for ( uint8_t i = 0; i < pCallbackData->objectCount; i++ )
+    for ( uint32_t i = 0; i < pCallbackData->objectCount; i++ )
     {
       message += std::string( "\t" ) + "Object " + std::to_string( i ) + "\n";
       message += std::string( "\t\t" ) + "objectType   = " +
diff --git a/samples/CreateDebugUtilsMessenger/CreateDebugUtilsMessenger.cpp b/samples/CreateDebugUtilsMessenger/CreateDebugUtilsMessenger.cpp
index f8fc3a3..f1eae71 100644
--- a/samples/CreateDebugUtilsMessenger/CreateDebugUtilsMessenger.cpp
+++ b/samples/CreateDebugUtilsMessenger/CreateDebugUtilsMessenger.cpp
@@ -60,7 +60,7 @@ VKAPI_ATTR VkBool32 VKAPI_CALL debugMessageFunc( VkDebugUtilsMessageSeverityFlag
   {
     message << "\t"
             << "Queue Labels:\n";
-    for ( uint8_t i = 0; i < pCallbackData->queueLabelCount; i++ )
+    for ( uint32_t i = 0; i < pCallbackData->queueLabelCount; i++ )
     {
       message << "\t\t"
               << "labelName = <" << pCallbackData->pQueueLabels[i].pLabelName << ">\n";
@@ -70,7 +70,7 @@ VKAPI_ATTR VkBool32 VKAPI_CALL debugMessageFunc( VkDebugUtilsMessageSeverityFlag
   {
     message << "\t"
             << "CommandBuffer Labels:\n";
-    for ( uint8_t i = 0; i < pCallbackData->cmdBufLabelCount; i++ )
+    for ( uint32_t i = 0; i < pCallbackData->cmdBufLabelCount; i++ )
     {
       message << "\t\t"
               << "labelName = <" << pCallbackData->pCmdBufLabels[i].pLabelName << ">\n";
@@ -80,7 +80,7 @@ VKAPI_ATTR VkBool32 VKAPI_CALL debugMessageFunc( VkDebugUtilsMessageSeverityFlag
   {
     message << "\t"
             << "Objects:\n";
-    for ( uint8_t i = 0; i < pCallbackData->objectCount; i++ )
+    for ( uint32_t i = 0; i < pCallbackData->objectCount; i++ )
     {
       message << "\t\t"
               << "Object " << i << "\n";
diff --git a/samples/EnableValidationWithCallback/EnableValidationWithCallback.cpp b/samples/EnableValidationWithCallback/EnableValidationWithCallback.cpp
index 4c0e7ee..f43b1f7 100644
--- a/samples/EnableValidationWithCallback/EnableValidationWithCallback.cpp
+++ b/samples/EnableValidationWithCallback/EnableValidationWithCallback.cpp
@@ -68,7 +68,7 @@ VKAPI_ATTR VkBool32 VKAPI_CALL debugMessageFunc( VkDebugUtilsMessageSeverityFlag
   if ( 0 < pCallbackData->queueLabelCount )
   {
     message += std::string( "\t" ) + "Queue Labels:\n";
-    for ( uint8_t i = 0; i < pCallbackData->queueLabelCount; i++ )
+    for ( uint32_t i = 0; i < pCallbackData->queueLabelCount; i++ )
     {
       message += std::string( "\t\t" ) + "labelName = <" + pCallbackData->pQueueLabels[i].pLabelName + ">\n";
     }
@@ -76,14 +76,14 @@ VKAPI_ATTR VkBool32 VKAPI_CALL debugMessageFunc( VkDebugUtilsMessageSeverityFlag
   if ( 0 < pCallbackData->cmdBufLabelCount )
   {
     message += std::string( "\t" ) + "CommandBuffer Labels:\n";
-    for ( uint8_t i = 0; i < pCallbackData->cmdBufLabelCount; i++ )
+    for ( uint32_t i = 0; i < pCallbackData->cmdBufLabelCount; i++ )
     {
       message += std::string( "\t\t" ) + "labelName = <" + pCallbackData->pCmdBufLabels[i].pLabelName + ">\n";
     }
   }
   if ( 0 < pCallbackData->objectCount )
   {
-    for ( uint8_t i = 0; i < pCallbackData->objectCount; i++ )
+    for ( uint32_t i = 0; i < pCallbackData->objectCount; i++ )
     {
       message += std::string( "\t" ) + "Object " + std::to_string( i ) + "\n";
       message += std::string( "\t\t" ) + "objectType   = " +
diff --git a/samples/utils/utils.cpp b/samples/utils/utils.cpp
index 5a199b6..95a37eb 100644
--- a/samples/utils/utils.cpp
+++ b/samples/utils/utils.cpp
@@ -438,7 +438,7 @@ namespace vk
       {
         std::cerr << "\t"
                   << "Queue Labels:\n";
-        for ( uint8_t i = 0; i < pCallbackData->queueLabelCount; i++ )
+        for ( uint32_t i = 0; i < pCallbackData->queueLabelCount; i++ )
         {
           std::cerr << "\t\t"
                     << "labelName = <" << pCallbackData->pQueueLabels[i].pLabelName << ">\n";
@@ -448,7 +448,7 @@ namespace vk
       {
         std::cerr << "\t"
                   << "CommandBuffer Labels:\n";
-        for ( uint8_t i = 0; i < pCallbackData->cmdBufLabelCount; i++ )
+        for ( uint32_t i = 0; i < pCallbackData->cmdBufLabelCount; i++ )
         {
           std::cerr << "\t\t"
                     << "labelName = <" << pCallbackData->pCmdBufLabels[i].pLabelName << ">\n";
@@ -458,7 +458,7 @@ namespace vk
       {
         std::cerr << "\t"
                   << "Objects:\n";
-        for ( uint8_t i = 0; i < pCallbackData->objectCount; i++ )
+        for ( uint32_t i = 0; i < pCallbackData->objectCount; i++ )
         {
           std::cerr << "\t\t"
                     << "Object " << i << "\n";