diff --git a/rpcs3/Emu/GS/GL/GLGSRender.cpp b/rpcs3/Emu/GS/GL/GLGSRender.cpp
index de13f8285e..a5d9e75731 100644
--- a/rpcs3/Emu/GS/GL/GLGSRender.cpp
+++ b/rpcs3/Emu/GS/GL/GLGSRender.cpp
@@ -1083,7 +1083,7 @@ void GLGSRender::ExecCMD()
 		checkForGlError("glFrontFace");
 	}
 
-	if(m_set_alpha_func && m_set_alpha_ref)
+	if(m_set_alpha_func && m_set_alpha_ref && m_alpha_func)
 	{
 		glAlphaFunc(m_alpha_func, m_alpha_ref);
 		checkForGlError("glAlphaFunc");