diff --git a/renderdoc/data/glsl_shaders.cpp b/renderdoc/data/glsl_shaders.cpp
index 53b71a68a..45d15ce63 100644
--- a/renderdoc/data/glsl_shaders.cpp
+++ b/renderdoc/data/glsl_shaders.cpp
@@ -43,9 +43,16 @@ void GenerateGLSLShader(std::vector<std::string> &sources, ShaderType type,
   }
 
   if(uniforms)
+  {
     sources[1] = GetEmbeddedResource(glsl_debuguniforms_h);
+  }
   else
-    sources[1] = "";
+  {
+    if(type == eShaderGLSLES)
+      sources[1] = "precision highp float; precision highp int;";
+    else
+      sources[1] = "";
+  }
 
   if(shader.find("#include \"texsample.h\"") != string::npos)
   {