diff --git a/Source/Core/VideoBackends/OGL/ProgramShaderCache.cpp b/Source/Core/VideoBackends/OGL/ProgramShaderCache.cpp
index 69dbbac063..9bbdff6d2d 100644
--- a/Source/Core/VideoBackends/OGL/ProgramShaderCache.cpp
+++ b/Source/Core/VideoBackends/OGL/ProgramShaderCache.cpp
@@ -264,7 +264,8 @@ bool ProgramShaderCache::CompileShader(SHADER& shader, const char* vcode, const
 
 	glAttachShader(pid, vsid);
 	glAttachShader(pid, psid);
-	glAttachShader(pid, gsid);
+	if (gsid)
+		glAttachShader(pid, gsid);
 
 	if (g_ogl_config.bSupportsGLSLCache)
 		glProgramParameteri(pid, GL_PROGRAM_BINARY_RETRIEVABLE_HINT, GL_TRUE);