diff --git a/rpcs3/Emu/RSX/GL/GLCommonDecompiler.cpp b/rpcs3/Emu/RSX/GL/GLCommonDecompiler.cpp
index 5662618c88..90ebd14afb 100644
--- a/rpcs3/Emu/RSX/GL/GLCommonDecompiler.cpp
+++ b/rpcs3/Emu/RSX/GL/GLCommonDecompiler.cpp
@@ -27,7 +27,7 @@ std::string getFunctionImpl(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:
diff --git a/rpcs3/Emu/RSX/VK/VKCommonDecompiler.cpp b/rpcs3/Emu/RSX/VK/VKCommonDecompiler.cpp
index e4fd45cba8..6bb454bd53 100644
--- a/rpcs3/Emu/RSX/VK/VKCommonDecompiler.cpp
+++ b/rpcs3/Emu/RSX/VK/VKCommonDecompiler.cpp
@@ -30,7 +30,7 @@ namespace vk
 		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: