diff --git a/targets/TARGET_Cypress/TARGET_PSOC6_FUTURE/lp_ticker.c b/targets/TARGET_Cypress/TARGET_PSOC6_FUTURE/lp_ticker.c
index ca26b99755..7e4e14d751 100644
--- a/targets/TARGET_Cypress/TARGET_PSOC6_FUTURE/lp_ticker.c
+++ b/targets/TARGET_Cypress/TARGET_PSOC6_FUTURE/lp_ticker.c
@@ -63,8 +63,8 @@ static cy_stc_mcwdt_config_t config = {
 // Interrupt configuration.
 static cy_stc_sysint_t lpt_sysint_config = {
 #if defined(TARGET_MCU_PSOC6_M0)
-    .intrSrc = (IRQn_Type)(-1),
-    .cm0pSrc = CY_M0_CORE_IRQ_CHANNEL_LP_TICKER,
+    .intrSrc = CY_M0_CORE_IRQ_CHANNEL_LP_TICKER,
+    .cm0pSrc = LPT_INTERRUPT_SOURCE,
 #else
     .intrSrc = LPT_INTERRUPT_SOURCE,
 #endif