diff --git a/app/src/main.c b/app/src/main.c
index 8a62ee8..4ea4be6 100644
--- a/app/src/main.c
+++ b/app/src/main.c
@@ -33,6 +33,8 @@ int32_t test_case(uint32_t argc, int32_t* argvp);
 extern OSP_STATUS osp_init();
 extern int32_t osp_set_taskcpu(uint8_t cpu, uint8_t pri);
 extern uint8_t osp_sw_queue_init();
+extern int32_t osp_signal_init(void);
+
 
 #ifdef ENABLE_JESD_TEST
 extern int32_t UCP_API_RFIC_CellInit(void);
@@ -132,6 +134,7 @@ int32_t main(int32_t argc, char* argvp[])
     osp_set_taskcpu(7, 95);
     drv_init();
     init_stc();
+    osp_signal_init();
 
 #ifdef PALLADIUM_TEST
     UCP_PRINT_DEBUG("entered testmode.");