diff --git a/src/I2CMotor.cpp b/src/I2CMotor.cpp
index fe54a35..8a17afb 100644
--- a/src/I2CMotor.cpp
+++ b/src/I2CMotor.cpp
@@ -1,5 +1,7 @@
 #include "I2CMotor.h"
 
+I2CMotor::I2CMotor() {}
+
 I2CMotor::I2CMotor(uint8_t sda, uint8_t scl, uint32_t freq)
     : sda_(sda), scl_(scl), freq_(freq), slave_addr_(0) {}
 
diff --git a/src/I2CMotor.h b/src/I2CMotor.h
index 09c22dc..50475a4 100644
--- a/src/I2CMotor.h
+++ b/src/I2CMotor.h
@@ -6,8 +6,8 @@
 
 class I2CMotor {
 public:
+    I2CMotor();
     I2CMotor(uint8_t sda = 8, uint8_t scl = 3, uint32_t freq = 100000);
-
     void begin();
     bool found();
     uint8_t address();