diff --git a/include/terml.h b/include/terml.h
index 4f74252..2480b28 100644
--- a/include/terml.h
+++ b/include/terml.h
@@ -11,9 +11,7 @@ typedef int  (*terml_quit_callback)  ();
 typedef void (*terml_key_callback)   (char code);
 typedef void (*terml_resize_callback)(
 	unsigned int previous_width,
-	unsigned int previous_height,
-	unsigned int new_width,
-	unsigned int new_height
+	unsigned int previous_height
 );
 
 int terml_init();
diff --git a/source/terml.cpp b/source/terml.cpp
index a6cfcec..8761ea3 100644
--- a/source/terml.cpp
+++ b/source/terml.cpp
@@ -214,8 +214,8 @@ void terml::setup_buffer()
 
 	stdin_buffer[STDIN_BUFFER_SIZE] = '\0';
 
-	unsigned int new_width = width;
-	unsigned int new_height = height;
+	const unsigned int new_width = width;
+	const unsigned int new_height = height;
 	const int scanned = sscanf(stdin_buffer, CURSOR_POSITION_FORMAT(), &new_height, &new_width);
 	if (scanned != 2)
 	{
@@ -244,7 +244,7 @@ void terml::setup_buffer()
 
 		if (resize)
 		{
-			resize(old_width, old_height, new_width, new_height);
+			resize(old_width, old_height);
 		}
 	}
 }