diff --git a/src/afs/afs_fetchstore.c b/src/afs/afs_fetchstore.c
index bf019c460a..610f1c6cc1 100644
--- a/src/afs/afs_fetchstore.c
+++ b/src/afs/afs_fetchstore.c
@@ -1114,9 +1114,7 @@ afs_CacheFetchProc(struct afs_conn *tc, struct rx_connection *rxconn,
     osi_GetuTime(&xferStartTime);
 #endif /* AFS_NOSTATS */
 
-    if (adc) {
-	adc->validPos = base;
-    }
+    adc->validPos = base;
 
     if ( !code ) do {
 	if (avc->f.states & CForeign) {
diff --git a/src/afs/afs_prototypes.h b/src/afs/afs_prototypes.h
index 13e336a8fb..5418036b47 100644
--- a/src/afs/afs_prototypes.h
+++ b/src/afs/afs_prototypes.h
@@ -503,7 +503,8 @@ extern int afs_CacheFetchProc(struct afs_conn *tc, struct rx_connection *rxconn,
                                 struct osi_file *fP,
 				afs_size_t abase, struct dcache *adc,
 				struct vcache *avc, afs_int32 size,
-				struct afs_FetchOutput *tsmall);
+				struct afs_FetchOutput *tsmall)
+				AFS_NONNULL((5));
 
 /* afs_memcache.c */
 extern int afs_InitMemCache(int blkCount, int blkSize, int flags);