diff --git a/Makefile b/Makefile
index 2d11fde..4159531 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
-	FILES = *.c */*.c
+FILES = *.c */*.c
 LIBRARIES = -lpthread
 INCLUDES = -I. -I./parser/ -I./compiler/ -I./vm/ -I./tokenizer/ -I./misc/ -I./assembler/
-CFLAGS = -std=c99 -Wall -o3
+CFLAGS = -std=c99 -Wall -O3
 OUTFILE = jackc
 
 main: ${FILES}