diff --git a/src/cocoa_window.m b/src/cocoa_window.m
index d85fac1e..521f8179 100644
--- a/src/cocoa_window.m
+++ b/src/cocoa_window.m
@@ -1928,7 +1928,7 @@ _GLFWusercontext* _glfwCreateUserContextCocoa(_GLFWwindow* window)
         return _glfwCreateUserContextOSMesa(window);
     }
 
-    return GLFW_FALSE;
+    return NULL;
 }
 
 
diff --git a/src/null_window.c b/src/null_window.c
index cb54fa68..270c8b2d 100644
--- a/src/null_window.c
+++ b/src/null_window.c
@@ -698,5 +698,5 @@ _GLFWusercontext* _glfwCreateUserContextNull(_GLFWwindow* window)
         return _glfwCreateUserContextOSMesa(window);
     }
 
-    return GLFW_FALSE;
+    return NULL;
 }
diff --git a/src/wl_window.c b/src/wl_window.c
index dc393bac..165a1bd4 100644
--- a/src/wl_window.c
+++ b/src/wl_window.c
@@ -1871,7 +1871,7 @@ _GLFWusercontext* _glfwPlatformCreateUserContext(_GLFWwindow* window)
         return _glfwCreateUserContextOSMesa(window);
     }
 
-    return GLFW_FALSE;
+    return NULL;
 }
 
 //////////////////////////////////////////////////////////////////////////
diff --git a/src/x11_window.c b/src/x11_window.c
index 1506125a..78e2cb83 100644
--- a/src/x11_window.c
+++ b/src/x11_window.c
@@ -3262,7 +3262,7 @@ _GLFWusercontext* _glfwCreateUserContextX11(_GLFWwindow* window)
         return _glfwCreateUserContextOSMesa(window);
     }
 
-    return GLFW_FALSE;
+    return NULL;
 }