diff --git a/src/rtos/rtos.c b/src/rtos/rtos.c
index 11cb79263..cdd37608e 100644
--- a/src/rtos/rtos.c
+++ b/src/rtos/rtos.c
@@ -189,7 +189,7 @@ static char *next_symbol(struct rtos *os, char *cur_symbol, uint64_t cur_addr)
 int rtos_qsymbol(struct connection *connection, char *packet, int packet_size)
 {
 	int rtos_detected = 0;
-	uint64_t addr;
+	uint64_t addr = 0;
 	size_t reply_len;
 	char reply[GDB_BUFFER_SIZE], cur_sym[GDB_BUFFER_SIZE / 2] = "", *next_sym;
 	struct target *target = get_target_from_connection(connection);