1 files changed, 3 insertions, 3 deletions
diff --git a/lib/smime/cmsudf.c b/lib/smime/cmsudf.c
index 13071113e..472b6d663 100644
--- a/lib/smime/cmsudf.c
+++ b/lib/smime/cmsudf.c
@@ -79,14 +79,14 @@ nss_cmstype_shutdown(void *appData, void *reserved)
 static PLHashNumber
 nss_cmstype_hash_key(const void *key)
 {
-   return (PLHashNumber) key;
+   return (PLHashNumber)((char *)key - (char *)NULL);
 }
 
 static PRIntn
 nss_cmstype_compare_keys(const void *v1, const void *v2)
 {
-   PLHashNumber value1 = (PLHashNumber) v1;
-   PLHashNumber value2 = (PLHashNumber) v2;
+   PLHashNumber value1 = nss_cmstype_hash_key(v1);
+   PLHashNumber value2 = nss_cmstype_hash_key(v2);
 
    return (value1 == value2);
 }