diff --git a/photosyst.c b/photosyst.c
index 08654c6f..02ca79c7 100644
--- a/photosyst.c
+++ b/photosyst.c
@@ -2698,7 +2698,7 @@ void
 realnuma_support(void)
 {
 	FILE		*fp;
-	int		i, total, nr=0, dist[10];
+	int		i, total, nr=0, dist[10]={0};
 	char		linebuf[1024];
 
 	if ( (fp = fopen(NUMADISTANCE0, "r")) == NULL)