diff --git a/src/ca/catime.c b/src/ca/catime.c
index d29a7d2fd..d5e056720 100644
--- a/src/ca/catime.c
+++ b/src/ca/catime.c
@@ -522,7 +522,7 @@ int catime ( char *channelName, unsigned channelCount, enum appendNumberFlag app
     nBytes = 0;
     for ( i=0; i < channelCount; i++ ) {
         if ( appNF == appendNumber ) {
-            sprintf ( pItemList[i].name,"%.*s%6u",
+            sprintf ( pItemList[i].name,"%.*s%.6u",
                 (int) (strsize - 15u), channelName, i );
         }
         else {