diff --git a/panda/src/gles2gsg/gles2gsg.h b/panda/src/gles2gsg/gles2gsg.h
index 9c8e53a92d..d09bbc5d19 100644
--- a/panda/src/gles2gsg/gles2gsg.h
+++ b/panda/src/gles2gsg/gles2gsg.h
@@ -62,6 +62,11 @@
 // This helps to keep the source clean of hundreds of #ifdefs.
 typedef char GLchar;
 #define GL_RENDERBUFFER_EXT GL_RENDERBUFFER
+#define GL_RENDERBUFFER_RED_SIZE_EXT GL_RENDERBUFFER_RED_SIZE
+#define GL_RENDERBUFFER_GREEN_SIZE_EXT GL_RENDERBUFFER_GREEN_SIZE
+#define GL_RENDERBUFFER_BLUE_SIZE_EXT GL_RENDERBUFFER_BLUE_SIZE
+#define GL_RENDERBUFFER_ALPHA_SIZE_EXT GL_RENDERBUFFER_ALPHA_SIZE
+#define GL_RENDERBUFFER_DEPTH_SIZE_EXT GL_RENDERBUFFER_DEPTH_SIZE
 #define GL_FRAMEBUFFER_EXT GL_FRAMEBUFFER
 #define GL_DRAW_FRAMEBUFFER_EXT GL_FRAMEBUFFER
 #define GL_READ_FRAMEBUFFER_EXT GL_FRAMEBUFFER