--- a/scripts/checkbuildlinux.sh
+++ b/scripts/checkbuildlinux.sh
@@ -37,6 +37,11 @@
 
 # ************************************************************
 # Target 1: gcc build for GTK+ 2
+cd scintilla/test/unit
+make clean
+make $JOBS test
+cd ../../..
+
 cd scintilla/gtk
 make clean
 make $JOBS CHECK_DEPRECATED=1