diff --git a/GPU/GLES/VertexShaderGenerator.cpp b/GPU/GLES/VertexShaderGenerator.cpp
index d5cb6c1e2c..bddcd1ab19 100644
--- a/GPU/GLES/VertexShaderGenerator.cpp
+++ b/GPU/GLES/VertexShaderGenerator.cpp
@@ -401,7 +401,7 @@ void GenerateVertexShader(int prim, char *buffer) {
 				break;
 			}
 			if (flipV)
-				WRITE(p, "  v_texcoord.y = 1.0 - v_texcoord.y;\n");
+				WRITE(p, "  v_texcoord.y = 1.0 - v_texcoord.y * 2.0;\n");
 		}
 
 		// Compute fogdepth