diff --git a/src/misc/hash.c b/src/misc/hash.c
index b212b3330..a0bb4c57c 100644
--- a/src/misc/hash.c
+++ b/src/misc/hash.c
@@ -916,7 +916,7 @@ void nghash_distribution(NGHASHPTR hashtable)
     if( this_count > 0 ){
       nzero_cnt++ ;
     }
-    diff = (double)this_count - avg ;
+    diff = (double) this_count - avg ;
     diff2 = diff * diff ;
     sum2 += diff2 ;
   }