diff --git a/hw/net/rocker/rocker_of_dpa.c b/hw/net/rocker/rocker_of_dpa.c
index 958f3006c1..3d6f55b512 100644
--- a/hw/net/rocker/rocker_of_dpa.c
+++ b/hw/net/rocker/rocker_of_dpa.c
@@ -99,13 +99,13 @@ typedef struct of_dpa_flow_key {
             } nd;
         } ipv6;
     };
-    int width;                       /* how many uint64_t's in key? */
+    int width;                       /* how many uint32_t's in key? */
 } OfDpaFlowKey;
 
-/* Width of key which includes field 'f' in u64s, rounded up */
+/* Width of key which includes field 'f' in u32s, rounded up */
 #define FLOW_KEY_WIDTH(f) \
     DIV_ROUND_UP(offsetof(OfDpaFlowKey, f) + sizeof_field(OfDpaFlowKey, f), \
-    sizeof(uint64_t))
+    sizeof(uint32_t))
 
 typedef struct of_dpa_flow_action {
     uint32_t goto_tbl;
@@ -304,9 +304,9 @@ static void _of_dpa_flow_match(void *key, void *value, void *user_data)
 {
     OfDpaFlow *flow = value;
     OfDpaFlowMatch *match = user_data;
-    uint64_t *k = (uint64_t *)&flow->key;
-    uint64_t *m = (uint64_t *)&flow->mask;
-    uint64_t *v = (uint64_t *)&match->value;
+    uint32_t *k = (uint32_t *)&flow->key;
+    uint32_t *m = (uint32_t *)&flow->mask;
+    uint32_t *v = (uint32_t *)&match->value;
     int i;
 
     if (flow->key.tbl_id == match->value.tbl_id) {