diff --git a/opengl/libs/GLES_trace/src/gltrace_fixup.cpp b/opengl/libs/GLES_trace/src/gltrace_fixup.cpp
index daba3ff..871b5dc 100644
--- a/opengl/libs/GLES_trace/src/gltrace_fixup.cpp
+++ b/opengl/libs/GLES_trace/src/gltrace_fixup.cpp
@@ -358,6 +358,14 @@
             fixup_addFBContents(context, glmsg, CURRENTLY_BOUND_FB);
         }
         break;
+    case GLMessage::glPushGroupMarkerEXT:
+        /* void PushGroupMarkerEXT(sizei length, const char *marker); */
+        fixup_CStringPtr(1, glmsg);
+        break;
+    case GLMessage::glInsertEventMarkerEXT:
+        /* void InsertEventMarkerEXT(sizei length, const char *marker); */
+        fixup_CStringPtr(1, glmsg);
+        break;
     default:
         break;
     }