diff --git a/avr/cores/MCUdude_corefiles/Arduino.h b/avr/cores/MCUdude_corefiles/Arduino.h
index 6dfcc9b2..78eeb8a2 100755
--- a/avr/cores/MCUdude_corefiles/Arduino.h
+++ b/avr/cores/MCUdude_corefiles/Arduino.h
@@ -125,14 +125,14 @@ void yield(void);
 #define sq(x)        ({ typeof (x) _x = (x); _x * _x; })
 #define min(a,b)     ({ typeof (a) _a = (a); typeof (b) _b = (b); _a < _b ? _a : _b;    })
 #define max(a,b)     ({ typeof (a) _a = (a); typeof (b) _b = (b); _a > _b ? _a : _b;    })
-#define round(x)     ({ typeof (x) _x = (x);  _x >= 0 ? (long)_x + 0.5 : (long)_x - 0.5 })
+#define round(x)     ({ typeof (x) _x = (x); _x >= 0 ? (long)_x + 0.5 : (long)_x - 0.5; })
 #define radians(deg) ((deg) * DEG_TO_RAD)
 #define degrees(rad) ((rad) * RAD_TO_DEG)
-#define constrain(x,low,high)   ({ \
-  typeof (x) _x = (x);             \
-  typeof (low) _l = (l);           \
-  typeof (high) _h = (h);          \
-  _x < _l ? _l : _x > _h ? _h :_x })
+#define constrain(x,low,high)     ({ \
+  typeof (x) _x = (x);               \
+  typeof (low) _l = (low);           \
+  typeof (high) _h = (high);         \
+  _x < _l ? _l : _x > _h ? _h : _x; })
 
 #define interrupts() sei()
 #define noInterrupts() cli()