diff --git a/Runtime/Input/CRumbleGenerator.cpp b/Runtime/Input/CRumbleGenerator.cpp
index 7887c405d..ce2ee350a 100644
--- a/Runtime/Input/CRumbleGenerator.cpp
+++ b/Runtime/Input/CRumbleGenerator.cpp
@@ -24,8 +24,9 @@ void CRumbleGenerator::Update(float dt) {
   if (!b_tp) {
     b_tp = true;
     s_tp = now;
-  } else
+  } else {
     ms = std::chrono::duration_cast<std::chrono::milliseconds>(now - s_tp).count();
+  }
 #endif
 
   if (!xf0_24_disabled) {
@@ -38,7 +39,7 @@ void CRumbleGenerator::Update(float dt) {
         if (xe0_commandArray[i] != EMotorState::Stop) {
 #if PWM_MONITOR
           s_tp = now;
-          printf("%lldms ON\n", ms);
+          fmt::print(FMT_STRING("{}ms ON\n"), ms);
 #endif
           xe0_commandArray[i] = EMotorState::Stop;
           updated = true;
@@ -50,7 +51,7 @@ void CRumbleGenerator::Update(float dt) {
           if (xe0_commandArray[i] != EMotorState::Rumble) {
 #if PWM_MONITOR
             s_tp = now;
-            printf("%lldms Off\n", ms);
+            fmt::print(FMT_STRING("{}ms Off\n"), ms);
 #endif
             xe0_commandArray[i] = EMotorState::Rumble;
             updated = true;
@@ -62,7 +63,7 @@ void CRumbleGenerator::Update(float dt) {
             if (xe0_commandArray[i] != EMotorState::Stop) {
 #if PWM_MONITOR
               s_tp = now;
-              printf("%lldms ON\n", ms);
+              fmt::print(FMT_STRING("{}ms ON\n"), ms);
 #endif
               xe0_commandArray[i] = EMotorState::Stop;
               updated = true;