diff --git a/Makefile b/Makefile
index 7ea4785..6e17f4a 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
 IDIR =.
 CC=gcc
-CFLAGS=-I$(IDIR) -Wall -g
+CFLAGS=-I$(IDIR) -Wall -g -fnested-functions
 
 SRCDIR=src
 ODIR=obj