1 files changed, 3 insertions, 3 deletions

diff --git a/src/hash.c b/src/hash.c
index 21d15dc..52fbc82 100644
--- a/src/hash.c
+++ b/src/hash.c
@@ -35,7 +35,7 @@ _gdbm_hash (datum key)
   /* Set the initial value from key. */
-  value = 0x238F13AF * key.dsize;
+  value = 0x238F13AFu * key.dsize;
   for (index = 0; index < key.dsize; index++)
-    value = (value + (key.dptr[index] << (index*5 % 24))) & 0x7FFFFFFF;
+    value = (value + (key.dptr[index] << ((unsigned) index * 5 % 24))) & 0x7FFFFFFF;
 
-  value = (1103515243 * value + 12345) & 0x7FFFFFFF;  
+  value = (1103515243u * value + 12345) & 0x7FFFFFFF;