diff --git a/rpcs3/Emu/RSX/GL/GLFragmentProgram.cpp b/rpcs3/Emu/RSX/GL/GLFragmentProgram.cpp
index 1bd5616c5a..f044e2fe90 100644
--- a/rpcs3/Emu/RSX/GL/GLFragmentProgram.cpp
+++ b/rpcs3/Emu/RSX/GL/GLFragmentProgram.cpp
@@ -30,7 +30,7 @@ std::string GLFragmentDecompilerThread::getFunction(FUNCTION f)
 	case FUNCTION::FUNCTION_DP2:
 		return "vec4(dot($0.xy, $1.xy))";
 	case FUNCTION::FUNCTION_DP2A:
-		return "";
+		return "vec4(dot($0.xy, $1.xy) + $2.x)";
 	case FUNCTION::FUNCTION_DP3:
 		return "vec4(dot($0.xyz, $1.xyz))";
 	case FUNCTION::FUNCTION_DP4: