diff --git a/src/common/appbase.cpp b/src/common/appbase.cpp
index 3671f0ee0e..57e0912e2e 100644
--- a/src/common/appbase.cpp
+++ b/src/common/appbase.cpp
@@ -953,7 +953,7 @@ wxString wxAppTraitsBase::GetAssertStackTrace()
     static const int maxLines = 20;
 
     StackDump dump;
-    dump.Walk(2, maxLines); // don't show OnAssert() call itself
+    dump.Walk(8, maxLines); // 8 is chosen to hide all OnAssert() calls
     stackTrace = dump.GetStackTrace();
 
     const int count = stackTrace.Freq(wxT('\n'));
diff --git a/src/gtk/utilsgtk.cpp b/src/gtk/utilsgtk.cpp
index c075851073..5ba11b4e02 100644
--- a/src/gtk/utilsgtk.cpp
+++ b/src/gtk/utilsgtk.cpp
@@ -335,7 +335,7 @@ static void get_stackframe_callback(void* p)
 {
     StackDump* dump = static_cast<StackDump*>(p);
     // skip over frames up to including wxOnAssert()
-    dump->ProcessFrames(3);
+    dump->ProcessFrames(7);
 }
 
 #endif // wxDEBUG_LEVEL && wxUSE_STACKWALKER
diff --git a/src/unix/stackwalk.cpp b/src/unix/stackwalk.cpp
index 28c4fa89c3..d082dfd22f 100644
--- a/src/unix/stackwalk.cpp
+++ b/src/unix/stackwalk.cpp
@@ -182,17 +182,18 @@ void wxStackWalker::ProcessFrames(size_t skip)
     if (!ms_symbols || !m_depth)
         return;
 
-    // we have 3 more "intermediate" frames which the calling code doesn't know
-    // about, account for them
+    // we are another level down from Walk(), so adjust the number of stack
+    // frames to skip accordingly
     skip += 1;
 
     // call addr2line only once since this call may be very slow
     // (it has to load in memory the entire EXE of this app which may be quite
     //  big, especially if it contains debug info and is compiled statically!)
-    int towalk = InitFrames(frames, m_depth - skip, &ms_addresses[skip], &ms_symbols[skip]);
+    int numFrames = InitFrames(frames, m_depth - skip,
+                               &ms_addresses[skip], &ms_symbols[skip]);
 
     // now do user-defined operations on each frame
-    for ( int n = 0; n < towalk - (int)skip; n++ )
+    for ( int n = 0; n < numFrames; n++ )
         OnStackFrame(frames[n]);
 }