diff --git a/src/replication.c b/src/replication.c
index 1a96d5a6..40bc91c1 100644
--- a/src/replication.c
+++ b/src/replication.c
@@ -923,7 +923,7 @@ int slaveTryPartialResynchronization(int fd) {
     reply = sendSynchronousCommand(fd,"PSYNC",psync_runid,psync_offset,NULL);
 
     if (!strncmp(reply,"+FULLRESYNC",11)) {
-        char *runid, *offset;
+        char *runid = NULL, *offset = NULL;
 
         /* FULL RESYNC, parse the reply in order to extract the run id
          * and the replication offset. */