diff --git a/src/volser/volprocs.c b/src/volser/volprocs.c
index 832f5d0c6a..6c4a239db8 100644
--- a/src/volser/volprocs.c
+++ b/src/volser/volprocs.c
@@ -407,7 +407,7 @@ SAFSVolPartitionInfo64(struct rx_call *acid, char *pname, struct diskPartition64
     return code;
 }
 
-afs_int32
+static afs_int32
 VolPartitionInfo(struct rx_call *acid, char *pname, struct diskPartition64
 		 *partition)
 {