diff --git a/Projects/CodeBlocks/SleepyHead.layout b/Projects/CodeBlocks/SleepyHead.layout
index ac1e38ff..565ba2a3 100644
--- a/Projects/CodeBlocks/SleepyHead.layout
+++ b/Projects/CodeBlocks/SleepyHead.layout
@@ -16,10 +16,10 @@
 	<File name="../../src/SleepyHeadMain.h" open="1" top="0" tabpos="2">
 		<Cursor position="2035" topLine="47" />
 	</File>
-	<File name="../../src/graphs/gl_pbuffer.cpp" open="1" top="0" tabpos="5">
+	<File name="../../src/graphs/gl_pbuffer.cpp" open="1" top="1" tabpos="5">
 		<Cursor position="3" topLine="0" />
 	</File>
-	<File name="../../src/graphs/gl_pbuffer.h" open="1" top="1" tabpos="6">
+	<File name="../../src/graphs/gl_pbuffer.h" open="1" top="0" tabpos="6">
 		<Cursor position="401" topLine="0" />
 	</File>
 	<File name="../../src/graphs/graph.cpp" open="1" top="0" tabpos="3">
diff --git a/src/graphs/gl_pbuffer.cpp b/src/graphs/gl_pbuffer.cpp
index 86511651..59226cca 100644
--- a/src/graphs/gl_pbuffer.cpp
+++ b/src/graphs/gl_pbuffer.cpp
@@ -5,7 +5,13 @@ Author: Mark Watkins <jedimark64@users.sourceforge.net>
 License: GPL
 */
 #include "gl_pbuffer.h"
+
+#if defined(__DARWIN__)
+#include <AGL/glu.h>
+#else
 #include <GL/glu.h>
+#endif
+
 #include <wx/utils.h>
 #include <wx/glcanvas.h>
 #include <wx/image.h>