diff --git a/Makefile b/Makefile
index 98dba6f..a6a8f8c 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 ### VARIABLES ###
 
 CC = gcc
-CFLAGS = -lgraph -ansi
+CFLAGS = -lgraph -ansi -pedantic
 SRCDIR = ./src
 HDIR = ./include
 ODIR = ./out