Index: src/branch.c
==================================================================
--- src/branch.c
+++ src/branch.c
@@ -92,11 +92,11 @@
   /* Copy all of the content from the parent into the branch */
   for(i=0; i<pParent->nFile; ++i){
     blob_appendf(&branch, "F %F", pParent->aFile[i].zName);
     if( pParent->aFile[i].zUuid ){
       blob_appendf(&branch, " %s", pParent->aFile[i].zUuid);
-      if( pParent->aFile[i].zPerm[0] ){
+      if( pParent->aFile[i].zPerm && pParent->aFile[i].zPerm[0] ){
         blob_appendf(&branch, " %s", pParent->aFile[i].zPerm);
       }
     }
     blob_append(&branch, "\n", 1);
   }