diff --git a/src/shared/fstab-util.c b/src/shared/fstab-util.c
index 546c81b80..db3769966 100644
--- a/src/shared/fstab-util.c
+++ b/src/shared/fstab-util.c
@@ -133,13 +133,15 @@ int fstab_find_pri(const char *options, int *ret) {
         assert(ret);
 
         r = fstab_filter_options(options, "pri\0", NULL, &opt, NULL);
-        if (r <= 0)
+        if (r < 0)
                 return r;
+        if (r == 0 || !opt)
+                return 0;
 
         r = safe_atou(opt, &pri);
         if (r < 0)
                 return r;
 
-        *ret = (int) r;
+        *ret = (int) pri;
         return 1;
 }
diff --git a/src/test/test-fstab-util.c b/src/test/test-fstab-util.c
index ddf965dde..7a4fa04c8 100644
--- a/src/test/test-fstab-util.c
+++ b/src/test/test-fstab-util.c
@@ -107,6 +107,23 @@ static void test_fstab_filter_options(void) {
         do_fstab_filter_options("", "opt\0", 0, NULL, NULL, "");
 }
 
+static void test_fstab_find_pri(void) {
+        int pri = -1;
+
+        assert_se(fstab_find_pri("pri", &pri) == 0);
+        assert_se(pri == -1);
+
+        assert_se(fstab_find_pri("pri=11", &pri) == 1);
+        assert_se(pri == 11);
+
+        assert_se(fstab_find_pri("opt,pri=12,opt", &pri) == 1);
+        assert_se(pri == 12);
+
+        assert_se(fstab_find_pri("opt,opt,pri=12,pri=13", &pri) == 1);
+        assert_se(pri == 13);
+}
+
 int main(void) {
         test_fstab_filter_options();
+        test_fstab_find_pri();
 }