diff --git a/src/Magnum/ImageFormat.h b/src/Magnum/ImageFormat.h
index 326276ca2..46b98c837 100644
--- a/src/Magnum/ImageFormat.h
+++ b/src/Magnum/ImageFormat.h
@@ -31,7 +31,7 @@
  */
 #endif
 
-#include <Magnum/OpenGL.h>
+#include "Magnum/OpenGL.h"
 
 #if !defined(MAGNUM_TARGET_GLES2) && !defined(MAGNUM_TARGET_WEBGL)
 namespace Magnum {