diff --git a/genex/sym2xps b/genex/sym2xps
index 13a2c82..1a74d58 100755
--- a/genex/sym2xps
+++ b/genex/sym2xps
@@ -32,7 +32,7 @@ out=$5
 	exit 1
 }
 
-grep "^DEF $sym " "$lib" >/dev/null || {
+grep "^DEF $sym " "$lib" >/dev/null || grep "^DEF ~$sym " "$lib" >/dev/null || {
 	echo "\"$sym\" not found in $lib" 1>&2
 	exit 1
 }