diff --git a/panda/src/glesgsg/glesgsg.h b/panda/src/glesgsg/glesgsg.h
index 394f9b2781..9549866972 100644
--- a/panda/src/glesgsg/glesgsg.h
+++ b/panda/src/glesgsg/glesgsg.h
@@ -67,6 +67,11 @@
 // This helps to keep the source clean of hundreds of #ifdefs.
 #define GL_NONE GL_NONE_OES
 #define GL_RENDERBUFFER_EXT GL_RENDERBUFFER_OES
+#define GL_RENDERBUFFER_RED_SIZE_EXT GL_RENDERBUFFER_RED_SIZE_OES
+#define GL_RENDERBUFFER_GREEN_SIZE_EXT GL_RENDERBUFFER_GREEN_SIZE_OES
+#define GL_RENDERBUFFER_BLUE_SIZE_EXT GL_RENDERBUFFER_BLUE_SIZE_OES
+#define GL_RENDERBUFFER_ALPHA_SIZE_EXT GL_RENDERBUFFER_ALPHA_SIZE_OES
+#define GL_RENDERBUFFER_DEPTH_SIZE_EXT GL_RENDERBUFFER_DEPTH_SIZE_OES
 #define GL_FRAMEBUFFER_EXT GL_FRAMEBUFFER_OES
 #define GL_DRAW_FRAMEBUFFER_EXT GL_FRAMEBUFFER_OES
 #define GL_READ_FRAMEBUFFER_EXT GL_FRAMEBUFFER_OES