diff --git a/sh/log.sh b/sh/log.sh
index e91c3ca..34e986f 100644
--- a/sh/log.sh
+++ b/sh/log.sh
@@ -16,14 +16,22 @@ sh_log_debug() {
 }
 
 sh_log_error() {
+	local code="${1}"
+	shift
+	[ -n "${code}" ] || sh_log_fatal 1 "No error code"
 	if [ "${SH_LOG_LEVEL}" -ge "${SH_LOG_LEVEL_ERROR}" ]; then
 		echo "[ERROR]" "${@}" >&2
+		return "${code}"
 	fi
 }
 
 sh_log_fatal() {
+	local code="${1}"
+	shift
+	[ -n "${code}" ] || sh_log_fatal 1 "No error code"
 	if [ "${SH_LOG_LEVEL}" -ge "${SH_LOG_LEVEL_FATAL}" ]; then
 		echo "[FATAL]" "${@}" >&2
+		exit "${code}"
 	fi
 }