diff --git a/proc/uptime.c b/proc/uptime.c
index 088cd68a..b4d9ba9d 100644
--- a/proc/uptime.c
+++ b/proc/uptime.c
@@ -151,7 +151,7 @@ PROCPS_EXPORT char *procps_uptime_sprint(void)
  */
 PROCPS_EXPORT char *procps_uptime_sprint_short(void)
 {
-    int updecades, upyears, upweeks, updays, uphours, upminutes = 0;
+    int updecades, upyears, upweeks, updays, uphours = 0, upminutes = 0;
     int pos = 3;
     int comma = 0;
     double uptime_secs, idle_secs;