diff --git a/imgui.cpp b/imgui.cpp
index ccb8be41d..01c0ccdfe 100644
--- a/imgui.cpp
+++ b/imgui.cpp
@@ -668,7 +668,6 @@
 #include "imgui_internal.h"
 
 #include <ctype.h>      // toupper, isprint
-#include <stdlib.h>     // NULL, malloc, free, qsort, atoi
 #include <stdio.h>      // vsnprintf, sscanf, printf
 #if defined(_MSC_VER) && _MSC_VER <= 1500 // MSVC 2008 or earlier
 #include <stddef.h>     // intptr_t
diff --git a/imgui_internal.h b/imgui_internal.h
index 634525569..53d7bb131 100644
--- a/imgui_internal.h
+++ b/imgui_internal.h
@@ -13,6 +13,7 @@
 #endif
 
 #include <stdio.h>      // FILE*
+#include <stdlib.h>     // NULL, malloc, free, qsort, atoi, atof
 #include <math.h>       // sqrtf, fabsf, fmodf, powf, floorf, ceilf, cosf, sinf
 #include <limits.h>     // INT_MIN, INT_MAX