diff --git a/sources/frontend.c b/sources/frontend.c
index ca916a8f..a2ccc156 100644
--- a/sources/frontend.c
+++ b/sources/frontend.c
@@ -991,6 +991,7 @@ od_frontend(void *arg)
 	/* setup client and run main loop */
 	od_route_t *route = client->route;
 	od_frontend_rc_t ferc;
+	ferc = OD_FE_UNDEF;
 	switch (route->config->storage->storage_type) {
 	case OD_STORAGE_TYPE_LOCAL:
 		ferc = od_frontend_setup_console(client);
diff --git a/third_party/kiwi/kiwi/io.h b/third_party/kiwi/kiwi/io.h
index 4c50adff..73b0938f 100644
--- a/third_party/kiwi/kiwi/io.h
+++ b/third_party/kiwi/kiwi/io.h
@@ -148,7 +148,7 @@ kiwi_read_size(char *data, uint32_t data_size)
 	char *pos = data + sizeof(uint8_t);
 
 	/* size */
-	uint32_t size;
+	uint32_t size = 0;
 	kiwi_read32(&size, &pos, &pos_size);
 	size -= sizeof(uint32_t);
 	return size;
@@ -159,7 +159,7 @@ kiwi_read_startup_size(char *data, uint32_t data_size)
 {
 	assert(data_size >= sizeof(uint32_t));
 	/* size */
-	uint32_t size;
+	uint32_t size = 0;
 	kiwi_read32(&size, &data, &data_size);
 	size -= sizeof(uint32_t);
 	return size;