diff --git a/tests/run.sh.in b/tests/run.sh.in
index 190ea79..50848ec 100644
--- a/tests/run.sh.in
+++ b/tests/run.sh.in
@@ -159,7 +159,7 @@ run_test "PKG_CONFIG_PATH='${selfdir}/lib1' ${1} --libs incomplete" \
 
 # 6) tests for builtins
 run_test "PKG_CONFIG_PATH='${selfdir}/lib1' ${1} --modversion pkg-config" \
-	'0.28'
+	'@PACKAGE_VERSION@'
 run_test "PKG_CONFIG_PATH='${selfdir}/lib1' ${1} --variable=prefix foo" \
 	'/test'
 run_test "PKG_CONFIG_PATH='${selfdir}/lib1' ${1} --define-variable=prefix=/test2 --variable=prefix foo" \