diff --git a/com.ibm.wala.core/dat/dictionary.txt b/com.ibm.wala.core/dat/dictionary.txt
index 73547ea72..b5b3cf8da 100644
--- a/com.ibm.wala.core/dat/dictionary.txt
+++ b/com.ibm.wala.core/dat/dictionary.txt
@@ -147,3 +147,4 @@ factoids
 xml
 pistoia
 checkcasts
+synthetically