diff --git a/src/sleep/sleep.c b/src/sleep/sleep.c
index a651870641..f9b822bd93 100644
--- a/src/sleep/sleep.c
+++ b/src/sleep/sleep.c
@@ -188,7 +188,7 @@ static int execute(char **modes, char **states) {
         return r;
 }
 
-static int read_wakealarm(uint64_t *result) {
+static int rtc_read_time(uint64_t *ret_sec) {
         _cleanup_free_ char *t = NULL;
         int r;
 
@@ -196,7 +196,7 @@ static int read_wakealarm(uint64_t *result) {
         if (r < 0)
                 return r;
 
-        return safe_atou64(t, result);
+        return safe_atou64(t, ret_sec);
 }
 
 static int write_wakealarm(const char *str) {
@@ -225,7 +225,7 @@ static int execute_s2h(usec_t hibernate_delay_sec) {
         if (r < 0)
                 return r;
 
-        r = read_wakealarm(&orig_time);
+        r = rtc_read_time(&orig_time);
         if (r < 0)
                 return log_error_errno(r, "Failed to read time: %d", r);
 
@@ -242,7 +242,7 @@ static int execute_s2h(usec_t hibernate_delay_sec) {
         if (r < 0)
                 return r;
 
-        r = read_wakealarm(&cmp_time);
+        r = rtc_read_time(&cmp_time);
         if (r < 0)
                 return log_error_errno(r, "Failed to read time: %d", r);