diff --git a/src/gtk/utilsgtk.cpp b/src/gtk/utilsgtk.cpp
index 7f2f15d92c..f9c83e3166 100644
--- a/src/gtk/utilsgtk.cpp
+++ b/src/gtk/utilsgtk.cpp
@@ -386,7 +386,8 @@ extern "C"
 {
     void get_stackframe_callback(StackDump *dump)
     {
-        dump->ProcessFrames(2); // don't show ShowAssertDialog() call itself
+        // skip over frames up to including wxOnAssert()
+        dump->ProcessFrames(3);
     }
 }