diff --git a/makefile b/makefile
index 9962e86..987d69f 100644
--- a/makefile
+++ b/makefile
@@ -1,10 +1,10 @@
 all: libvm vm
 
 libvm: wrapper.c vm_instructions.c vm_decode.c vm.h tty.c
-	gcc -ggdb -shared -Wl,-soname,libvm.so -o libvm.so -fPIC wrapper.c vm_instructions.c vm_decode.c vm.h tty.c
+	gcc -ggdb -Dtty_lib=true -shared -Wl,-soname,libvm.so -o libvm.so -fPIC wrapper.c vm_instructions.c vm_decode.c vm.h tty.c
 
 vm: vm.h vm.c vm_instructions.c vm_decode.c tty.c
-	gcc -ggdb vm.h vm.c vm_instructions.c vm_decode.c tty.c -o bin/vm
+	gcc -ggdb -Dtty_lib=true vm.h vm.c vm_instructions.c vm_decode.c tty.c -o bin/vm
 
 production: libvm-production vm-production
 
diff --git a/tty.c b/tty.c
index f65b666..c020d42 100644
--- a/tty.c
+++ b/tty.c
@@ -8,8 +8,6 @@
  * wish to use. Please note that they contain bugs  *
  ****************************************************/
 
-#define tty_lib true
-
 /* In order to restore at exit.*/
 static struct termios orig_termios;