diff --git a/core/rend/gles/gles.cpp b/core/rend/gles/gles.cpp
index c550097e4..88e298919 100644
--- a/core/rend/gles/gles.cpp
+++ b/core/rend/gles/gles.cpp
@@ -1912,6 +1912,8 @@ bool RenderFrame()
 	}
 	else
 	{
+		glcache.ClearColor(0.f, 0.f, 0.f, 0.f);
+		glClear(GL_COLOR_BUFFER_BIT);
 		DrawFramebuffer(dc_width, dc_height);
 	}
 	#if HOST_OS==OS_WINDOWS