diff --git a/Units/MMLAddon/mmlpsthread.pas b/Units/MMLAddon/mmlpsthread.pas
index aa06b71..e903add 100644
--- a/Units/MMLAddon/mmlpsthread.pas
+++ b/Units/MMLAddon/mmlpsthread.pas
@@ -253,7 +253,7 @@ end;
 {$I PSInc/Wrappers/other.inc}
 {$I PSInc/Wrappers/bitmap.inc}
 {$I PSInc/Wrappers/window.inc}
-{$I PSInc/Wrappers/Strings.inc}
+{$I PSInc/Wrappers/strings.inc}
 
 {$I PSInc/Wrappers/colour.inc}
 {$I PSInc/Wrappers/math.inc}