diff --git a/include/wx/wx_cw_cm.h b/include/wx/wx_cw_cm.h
index 581bb4f3bb..127bbbc0f1 100644
--- a/include/wx/wx_cw_cm.h
+++ b/include/wx/wx_cw_cm.h
@@ -6,7 +6,7 @@
 
 #define WX_COMP_INLINE_NO_CLASS // defined if the compiler does not want the classname repeated for inlines within a class definition
 
-#if __MWERKS__ >= 0x2400
+#if __MWERKS__ >= 0x2400 && __MWERKS__ <= 0x3200
 #pragma old_argmatch on
 #endif
 
diff --git a/include/wx/wx_cwc.h b/include/wx/wx_cwc.h
index 8fa963af54..02456ae97b 100644
--- a/include/wx/wx_cwc.h
+++ b/include/wx/wx_cwc.h
@@ -12,7 +12,7 @@
 #ifndef _WX_CW__
 #define _WX_CW__
 
-#if __MWERKS__ >= 0x2400
+#if __MWERKS__ >= 0x2400 && __MWERKS__ <= 0x3200
 #pragma old_argmatch on
 #endif
 
diff --git a/include/wx/wx_cwc_d.h b/include/wx/wx_cwc_d.h
index 6db33689c0..47bdc7a039 100644
--- a/include/wx/wx_cwc_d.h
+++ b/include/wx/wx_cwc_d.h
@@ -12,7 +12,7 @@
 #ifndef _WX_CW__
 #define _WX_CW__
 
-#if __MWERKS__ >= 0x2400
+#if __MWERKS__ >= 0x2400 && __MWERKS__ <= 0x3200
 #pragma old_argmatch on
 #endif