diff --git a/src/Magnum/Implementation/FramebufferState.h b/src/Magnum/Implementation/FramebufferState.h
index f8ecde63c..0239d1d8c 100644
--- a/src/Magnum/Implementation/FramebufferState.h
+++ b/src/Magnum/Implementation/FramebufferState.h
@@ -30,6 +30,10 @@
 
 #include "Magnum/Framebuffer.h"
 
+#ifdef CORRADE_GCC45_COMPATIBILITY
+#include "Magnum/RenderbufferFormat.h"
+#endif
+
 namespace Magnum { namespace Implementation {
 
 struct FramebufferState {
diff --git a/src/Magnum/Implementation/TextureState.h b/src/Magnum/Implementation/TextureState.h
index 3b766becb..7d6086d5f 100644
--- a/src/Magnum/Implementation/TextureState.h
+++ b/src/Magnum/Implementation/TextureState.h
@@ -31,6 +31,12 @@
 #include "Magnum/Magnum.h"
 #include "Magnum/OpenGL.h"
 
+#ifdef CORRADE_GCC45_COMPATIBILITY
+#include "Magnum/BufferTexture.h"
+#include "Magnum/ColorFormat.h"
+#include "Magnum/TextureFormat.h"
+#endif
+
 namespace Magnum { namespace Implementation {
 
 struct TextureState {