diff --git a/renderdoc/driver/gl/gl_common.h b/renderdoc/driver/gl/gl_common.h
index 7cbb8705e..9b34e6fb2 100644
--- a/renderdoc/driver/gl/gl_common.h
+++ b/renderdoc/driver/gl/gl_common.h
@@ -642,6 +642,7 @@ extern bool IsGLES;
   EXT_TO_CHECK(32, 32, ARB_geometry_shader4)                     \
   EXT_TO_CHECK(41, 31, ARB_separate_shader_objects)              \
   EXT_TO_CHECK(41, 99, ARB_viewport_array)                       \
+  EXT_TO_CHECK(41, 99, ARB_ES2_compatibility)                    \
   EXT_TO_CHECK(42, 99, ARB_base_instance)                        \
   EXT_TO_CHECK(42, 31, ARB_shader_atomic_counters)               \
   EXT_TO_CHECK(42, 31, ARB_shader_image_load_store)              \
diff --git a/renderdoc/driver/gl/wrappers/gl_emulated.cpp b/renderdoc/driver/gl/wrappers/gl_emulated.cpp
index c17958e0b..68e6abd4e 100644
--- a/renderdoc/driver/gl/wrappers/gl_emulated.cpp
+++ b/renderdoc/driver/gl/wrappers/gl_emulated.cpp
@@ -2053,6 +2053,13 @@ void GLDispatchTable::EmulateRequiredExtensions()
     EMULATE_FUNC(glClearBufferSubData);
   }
 
+  // really silly case, we just forward to non-float version
+  if(!IsGLES && !HasExt[ARB_ES2_compatibility])
+  {
+    RDCLOG("Emulating ARB_ES2_compatibility");
+    EMULATE_FUNC(glClearDepthf);
+  }
+
   // we manually implement these queries
   if(!HasExt[ARB_internalformat_query2])
   {