diff --git a/qt3-tqt3/convert_existing_qt3_app_to_tqt3 b/qt3-tqt3/convert_existing_qt3_app_to_tqt3
index 22a2345..153514a 100755
--- a/qt3-tqt3/convert_existing_qt3_app_to_tqt3
+++ b/qt3-tqt3/convert_existing_qt3_app_to_tqt3
@@ -1,6 +1,6 @@
 #!/bin/bash
 
-find ./ -type f -iname "*.c*" -o -iname "*.h*" -o -iname "*.ui*" -o -name "*.kcfg" -not -iwholename '*.git*' |\
+find ./ -type f -iname "*.c*" -o -iname "*.h*" -o -iname "*.ui*" -o -name "*.kcfg" -o -name "*.ypp" -not -iwholename '*.git*' |\
 tr "\n" "\0" |\
 xargs -r0 sed -i \
  -e 's/^Q\([ABCDEFGHIJKLMNOPQRSTUVWXYZ]\)\([_abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ]\)/TQ\1\2/g' \