diff --git a/GPU/GLES/FragmentShaderGeneratorGLES.cpp b/GPU/GLES/FragmentShaderGeneratorGLES.cpp
index 421d8a9f92..16ea72da39 100644
--- a/GPU/GLES/FragmentShaderGeneratorGLES.cpp
+++ b/GPU/GLES/FragmentShaderGeneratorGLES.cpp
@@ -174,6 +174,10 @@ bool GenerateFragmentShader(const FShaderID &id, char *buffer, uint64_t *uniform
 
 	bool isModeClear = id.Bit(FS_BIT_CLEARMODE);
 
+	if (shaderDepal) {
+		WRITE(p, "precision highp int;\n");
+	}
+
 	const char *shading = "";
 	if (glslES30)
 		shading = doFlatShading ? "flat" : "";