diff --git a/JoyShockLibrary/JoyShock.cpp b/JoyShockLibrary/JoyShock.cpp
index e935137..d9ae7ff 100644
--- a/JoyShockLibrary/JoyShock.cpp
+++ b/JoyShockLibrary/JoyShock.cpp
@@ -921,7 +921,9 @@ class JoyShock {
 	}
 
 	void init_ds4_bt() {
-		printf("initialise, set colour\n");
+		#ifdef _DEBUG
+			printf("initialise, set colour\n");
+		#endif
 		unsigned char buf[78];
 		memset(buf, 0, 78);