diff --git a/extmod/btstack/modbluetooth_btstack.c b/extmod/btstack/modbluetooth_btstack.c
index 31b2825758..206bc98f9f 100644
--- a/extmod/btstack/modbluetooth_btstack.c
+++ b/extmod/btstack/modbluetooth_btstack.c
@@ -35,7 +35,7 @@
 
 #include "lib/btstack/src/btstack.h"
 
-#define DEBUG_EVENT_printf(...) //printf(__VA_ARGS__)
+#define DEBUG_EVENT_printf(...) // printf(__VA_ARGS__)
 
 #ifndef MICROPY_PY_BLUETOOTH_DEFAULT_GAP_NAME
 #define MICROPY_PY_BLUETOOTH_DEFAULT_GAP_NAME "MPY BTSTACK"
diff --git a/extmod/nimble/modbluetooth_nimble.c b/extmod/nimble/modbluetooth_nimble.c
index 035ec3d26f..4e0ca88efa 100644
--- a/extmod/nimble/modbluetooth_nimble.c
+++ b/extmod/nimble/modbluetooth_nimble.c
@@ -45,7 +45,7 @@
 #define MICROPY_PY_BLUETOOTH_DEFAULT_GAP_NAME "MPY NIMBLE"
 #endif
 
-#define DEBUG_EVENT_printf(...) //printf(__VA_ARGS__)
+#define DEBUG_EVENT_printf(...) // printf(__VA_ARGS__)
 
 #define ERRNO_BLUETOOTH_NOT_ACTIVE MP_ENODEV
 
diff --git a/tools/codeformat.py b/tools/codeformat.py
index 364037d2fa..653529460c 100755
--- a/tools/codeformat.py
+++ b/tools/codeformat.py
@@ -36,6 +36,8 @@ import subprocess
 PATHS = [
     # C
     "extmod/*.[ch]",
+    "extmod/btstack/*.[ch]",
+    "extmod/nimble/*.[ch]",
     "lib/netutils/*.[ch]",
     "lib/timeutils/*.[ch]",
     "lib/utils/*.[ch]",