diff --git a/Timer/inc/Timer.h b/Timer/inc/Timer.h
index 6c0981f..55ca9a1 100644
--- a/Timer/inc/Timer.h
+++ b/Timer/inc/Timer.h
@@ -70,6 +70,7 @@ public:
 private:
   volatile std::atomic_int counter;
   volatile std::atomic_int timer;
+  uint32_t freq;
 };
 
 #endif /* TIMER_H_ */
diff --git a/Timer/src/Timer.cpp b/Timer/src/Timer.cpp
index f9ea64c..e41a10d 100644
--- a/Timer/src/Timer.cpp
+++ b/Timer/src/Timer.cpp
@@ -17,12 +17,13 @@ extern "C"
   }
 }
 
-Timer::Timer (uint32_t freq = 1000)
+Timer::Timer (uint32_t freq) : freq (freq)
 {
   Chip_Clock_SetSysTickClockDiv (1);
   uint32_t sysTickRate = Chip_Clock_GetSysTickClockRate ();
   SysTick_Config (sysTickRate / freq);
   counter = 0;
+  timer = 0;
 }
 
 Timer::~Timer ()