diff --git a/src/common.h b/src/common.h
new file mode 100644
index 0000000..b641277
--- /dev/null
+++ b/src/common.h
@@ -0,0 +1,7 @@
+#ifndef COMMON_H
+#define COMMON_H
+
+#define FALSE 0
+#define TRUE  1
+
+#endif
diff --git a/src/tty-solitaire.c b/src/tty-solitaire.c
index 8bb701f..6cf0e4a 100644
--- a/src/tty-solitaire.c
+++ b/src/tty-solitaire.c
@@ -1,9 +1,7 @@
 #include <ncurses.h>
 #include <malloc.h>
 #include <string.h>
-
-#define FALSE 0
-#define TRUE  1
+#include "common.h"
 
 #define CARD_FRAME_WIDTH  7
 #define CARD_FRAME_HEIGHT 5