diff --git a/nimble/host/mesh/src/app_keys.c b/nimble/host/mesh/src/app_keys.c
index acc51f2a6..cfe82576a 100644
--- a/nimble/host/mesh/src/app_keys.c
+++ b/nimble/host/mesh/src/app_keys.c
@@ -495,7 +495,7 @@ ssize_t bt_mesh_app_keys_get(uint16_t net_idx, uint16_t app_idxs[], size_t max,
 
 int bt_mesh_keys_resolve(struct bt_mesh_msg_ctx *ctx,
 			 struct bt_mesh_subnet **sub,
-			 const uint8_t *app_key[16], uint8_t *aid)
+			 const uint8_t **app_key, uint8_t *aid)
 {
 	struct app_key *app = NULL;
 
diff --git a/nimble/host/mesh/src/app_keys.h b/nimble/host/mesh/src/app_keys.h
index 3ef9ce7c8..40df66450 100644
--- a/nimble/host/mesh/src/app_keys.h
+++ b/nimble/host/mesh/src/app_keys.h
@@ -41,7 +41,7 @@ int bt_mesh_app_key_set(uint16_t app_idx, uint16_t net_idx,
  */
 int bt_mesh_keys_resolve(struct bt_mesh_msg_ctx *ctx,
 			 struct bt_mesh_subnet **sub,
-			 const uint8_t *app_key[16], uint8_t *aid);
+			 const uint8_t **app_key, uint8_t *aid);
 
 /** @brief Iterate through all matching application keys and call @c cb on each.
  *