diff --git a/lib/I2Cdevlib-MPU6050/MPU6050_6Axis_MotionApps20.h b/lib/I2Cdevlib-MPU6050/MPU6050_6Axis_MotionApps20.h
index 46920438a..90704f0c7 100644
--- a/lib/I2Cdevlib-MPU6050/MPU6050_6Axis_MotionApps20.h
+++ b/lib/I2Cdevlib-MPU6050/MPU6050_6Axis_MotionApps20.h
@@ -113,11 +113,19 @@ THE SOFTWARE.
     #define DEBUG_PRINTLN(x) Serial.println(x)
     #define DEBUG_PRINTLNF(x, y) Serial.println(x, y)
 #else
+#ifndef DEBUG_PRINT
     #define DEBUG_PRINT(x)
+#endif
+#ifndef DEBUG_PRINTF
     #define DEBUG_PRINTF(x, y)
+#endif
+#ifndef DEBUG_PRINTLN
     #define DEBUG_PRINTLN(x)
+#endif
+#ifndef DEBUG_PRINTLNF
     #define DEBUG_PRINTLNF(x, y)
 #endif
+#endif
 
 #define MPU6050_DMP_CODE_SIZE       1929    // dmpMemory[]
 #define MPU6050_DMP_CONFIG_SIZE     192     // dmpConfig[]