diff --git a/src/platform/PICO/debug_pin.c b/src/platform/PICO/debug_pin.c
index 6d4db50322..0cde0bccb1 100644
--- a/src/platform/PICO/debug_pin.c
+++ b/src/platform/PICO/debug_pin.c
@@ -62,9 +62,10 @@ void dbgPinInit(void)
 void dbgPinHi(int index)
 {
 #ifdef USE_DEBUG_PIN
-    if ((unsigned)index >= ARRAYLEN(dbgPinIOs)) {
+    if ((unsigned)index >= ARRAYLEN(dbgPinIOs) || !dbgPinIOs[index]) {
         return;
     }
+
     IOHi(dbgPinIOs[index]);
 #else
     UNUSED(index);
@@ -74,9 +75,10 @@ void dbgPinHi(int index)
 void dbgPinLo(int index)
 {
 #ifdef USE_DEBUG_PIN
-    if ((unsigned)index >= ARRAYLEN(dbgPinIOs)) {
+    if ((unsigned)index >= ARRAYLEN(dbgPinIOs) || !dbgPinIOs[index]) {
         return;
     }
+
     IOLo(dbgPinIOs[index]);
 #else
     UNUSED(index);