diff --git a/src/rtos/riscv_debug.c b/src/rtos/riscv_debug.c
index c999cbc7d..ad9d064e2 100644
--- a/src/rtos/riscv_debug.c
+++ b/src/rtos/riscv_debug.c
@@ -100,7 +100,7 @@ static int riscv_gdb_thread_packet(struct connection *connection, const char *pa
 		}
 
 		if (strncmp(packet, "qAttached", 9) == 0) {
-			gdb_put_packet(connection, "0", 1);
+			gdb_put_packet(connection, "1", 1);
 			return ERROR_OK;
 		}