diff --git a/tools/qfvis/source/flow.c b/tools/qfvis/source/flow.c
index e3e042d2e..11470fa3a 100644
--- a/tools/qfvis/source/flow.c
+++ b/tools/qfvis/source/flow.c
@@ -217,7 +217,7 @@ RecursiveLeafFlow (int leafnum, threaddata_t *thread, pstack_t *prevstack)
     portal_t	*p;
     plane_t		backplane;
     winding_t	*source, *target;
-	
+
     c_chains++;
 
     leaf = &leafs[leafnum];
diff --git a/tools/qfvis/source/qfvis.c b/tools/qfvis/source/qfvis.c
index 81147faac..05dd52d61 100644
--- a/tools/qfvis/source/qfvis.c
+++ b/tools/qfvis/source/qfvis.c
@@ -847,7 +847,8 @@ main (int argc, char **argv)
 	CalcVis ();
 
 	if (options.verbosity >= 0)
-		printf ("c_chains: %i\n", c_chains);
+		printf ("c_chains: %i%s\n", c_chains,
+				options.threads > 1 ? " (not reliable)" :"");
 
 	BSP_AddVisibility (bsp, visdata->str, visdata->size);
 	if (options.verbosity >= 0)