diff --git a/src/vnet/hash/crc32_5tuple.c b/src/vnet/hash/crc32_5tuple.c
index 69ee63a..29d92a9 100644
--- a/src/vnet/hash/crc32_5tuple.c
+++ b/src/vnet/hash/crc32_5tuple.c
@@ -80,7 +80,7 @@
 
   while (n_left_from >= 8)
     {
-      crc32c_5tuple_key_t key[4];
+      crc32c_5tuple_key_t key[4] = {};
 
       clib_prefetch_load (p[4]);
       clib_prefetch_load (p[5]);
@@ -104,7 +104,7 @@
 
   while (n_left_from > 0)
     {
-      crc32c_5tuple_key_t key;
+      crc32c_5tuple_key_t key = {};
 
       compute_ip_key (p[0], &key);
 
@@ -158,7 +158,7 @@
 
   while (n_left_from >= 8)
     {
-      crc32c_5tuple_key_t key[4];
+      crc32c_5tuple_key_t key[4] = {};
 
       clib_prefetch_load (p[4]);
       clib_prefetch_load (p[5]);
@@ -182,7 +182,7 @@
 
   while (n_left_from > 0)
     {
-      crc32c_5tuple_key_t key;
+      crc32c_5tuple_key_t key = {};
 
       compute_ethernet_key (p[0], &key);