diff --git a/config/RULES.ioc b/config/RULES.ioc
index 8233a60a7..0a43ac3cf 100644
--- a/config/RULES.ioc
+++ b/config/RULES.ioc
@@ -1,7 +1,7 @@
 #RULES.ioc
 
 ifndef WIN32
-APPDIR := $(shell grep '.*".*App/' st.* | sed -e 's/.*"\(.*App\).*/\1/' | sort -u )
+APPDIR :=$(notdir $(wildcard ../../*App ))
 endif
 
 ASCF = $(TOP)/../ascf