diff --git a/src/OpenGL/libGLESv2/libGLESv2.cpp b/src/OpenGL/libGLESv2/libGLESv2.cpp
index 5198ada..f612a63 100644
--- a/src/OpenGL/libGLESv2/libGLESv2.cpp
+++ b/src/OpenGL/libGLESv2/libGLESv2.cpp
@@ -3349,7 +3349,12 @@
 		{
 		case GL_RENDERBUFFER_WIDTH:           *params = renderbuffer->getWidth();       break;
 		case GL_RENDERBUFFER_HEIGHT:          *params = renderbuffer->getHeight();      break;
-		case GL_RENDERBUFFER_INTERNAL_FORMAT: *params = renderbuffer->getFormat();      break;
+		case GL_RENDERBUFFER_INTERNAL_FORMAT:
+			{
+				GLint internalformat = renderbuffer->getFormat();
+				*params = (internalformat == GL_NONE) ? GL_RGBA4 : internalformat;
+			}
+			break;
 		case GL_RENDERBUFFER_RED_SIZE:        *params = renderbuffer->getRedSize();     break;
 		case GL_RENDERBUFFER_GREEN_SIZE:      *params = renderbuffer->getGreenSize();   break;
 		case GL_RENDERBUFFER_BLUE_SIZE:       *params = renderbuffer->getBlueSize();    break;