diff --git a/tests/xbps/libxbps/config/main.c b/tests/xbps/libxbps/config/main.c
index d371a32c..401a6896 100644
--- a/tests/xbps/libxbps/config/main.c
+++ b/tests/xbps/libxbps/config/main.c
@@ -39,6 +39,7 @@ ATF_TC_BODY(config_include_test, tc)
 	struct xbps_handle xh;
 	const char *tcsdir;
 	char *buf, *buf2, pwd[PATH_MAX];
+	int ret;
 
 	/* get test source dir */
 	tcsdir = atf_tc_get_config_var(tc, "srcdir");
@@ -48,7 +49,9 @@ ATF_TC_BODY(config_include_test, tc)
 
 	xbps_strlcpy(xh.rootdir, pwd, sizeof(xh.rootdir));
 	xbps_strlcpy(xh.metadir, pwd, sizeof(xh.metadir));
-	snprintf(xh.confdir, sizeof(xh.confdir), "%s/xbps.d", pwd);
+	ret = snprintf(xh.confdir, sizeof(xh.confdir), "%s/xbps.d", pwd);
+	ATF_REQUIRE_EQ((ret >= 0), 1);
+	ATF_REQUIRE_EQ(((size_t)ret < sizeof(xh.confdir)), 1);
 
 	ATF_REQUIRE_EQ(xbps_mkpath(xh.confdir, 0755), 0);
 
@@ -88,6 +91,7 @@ ATF_TC_BODY(config_include_nomatch_test, tc)
 	struct xbps_handle xh;
 	const char *tcsdir;
 	char *buf, *buf2, pwd[PATH_MAX];
+	int ret;
 
 	/* get test source dir */
 	tcsdir = atf_tc_get_config_var(tc, "srcdir");
@@ -97,7 +101,9 @@ ATF_TC_BODY(config_include_nomatch_test, tc)
 
 	xbps_strlcpy(xh.rootdir, tcsdir, sizeof(xh.rootdir));
 	xbps_strlcpy(xh.metadir, tcsdir, sizeof(xh.metadir));
-	snprintf(xh.confdir, sizeof(xh.confdir), "%s/xbps.d", pwd);
+	ret = snprintf(xh.confdir, sizeof(xh.confdir), "%s/xbps.d", pwd);
+	ATF_REQUIRE_EQ((ret >= 0), 1);
+	ATF_REQUIRE_EQ(((size_t)ret < sizeof(xh.confdir)), 1);
 
 	ATF_REQUIRE_EQ(xbps_mkpath(xh.confdir, 0755), 0);