diff --git a/src/include/math.h b/src/include/math.h
index ce4db273..78cebe35 100644
--- a/src/include/math.h
+++ b/src/include/math.h
@@ -1,6 +1,11 @@
 #ifndef _MATH_H_INCLUDE
 #define _MATH_H_INCLUDE
 
+
 long intpow(long base, long exp);
 
+static inline long labs(long n){
+	return n < 0 ? -n : n;
+}
+
 #endif