diff --git a/test/util-test.cc b/test/util-test.cc
index c7f242f5..34d382c8 100644
--- a/test/util-test.cc
+++ b/test/util-test.cc
@@ -698,6 +698,12 @@ void test_count_digits() {
   }
 }
 
+TEST(UtilTest, StringRef) {
+  char space[PATH_MAX];
+  snprintf(space, sizeof(space), "some string");
+  EXPECT_EQ(sizeof("some string") - 1, StringRef(space).size());
+}
+
 TEST(UtilTest, CountDigits) {
   test_count_digits<uint32_t>();
   test_count_digits<uint64_t>();