diff --git a/sources/Box2D/Common/b2GrowableStack.h b/sources/Box2D/Common/b2GrowableStack.h
index 80514f29..cd5a981f 100755
--- a/sources/Box2D/Common/b2GrowableStack.h
+++ b/sources/Box2D/Common/b2GrowableStack.h
@@ -19,7 +19,7 @@
 #ifndef B2_GROWABLE_STACK_H
 #define B2_GROWABLE_STACK_H
 #include <Box2D/Common/b2Settings.h>
-#include <memory.h>
+#include <string.h>
 
 /// This is a growable LIFO stack with an initial capacity of N.
 /// If the stack size exceeds the initial capacity, the heap is used