diff --git a/scripts/update_parser.sh b/scripts/update_parser.sh
index 98d650681..773df06f2 100755
--- a/scripts/update_parser.sh
+++ b/scripts/update_parser.sh
@@ -9,6 +9,8 @@ IN="./scanner.rl"
 OUT_T0="./scanner.c.t0"
 OUT_G2="./scanner.c.g2"
 
+pushd $(dirname "$0")
+
 pushd ../src/libzscanner/
 
 # Generate slower/small zone parser.
@@ -51,3 +53,5 @@ sed -i '/static\ const\ int\ yparser_/d' $OUT_Y
 sed -i 's/\s*$//g' $OUT_Y
 
 popd
+
+popd