diff --git a/f3probe.c b/f3probe.c
index 3635bb0..cdd8b7c 100644
--- a/f3probe.c
+++ b/f3probe.c
@@ -4,8 +4,10 @@
 #include <argp.h>
 #include <stdbool.h>
 
+#include "version.h"
+
 /* Argp's global variables. */
-const char *argp_program_version = "F3 Probe 1.0";
+const char *argp_program_version = "F3 Probe " F3_STR_VERSION;
 
 /* Arguments. */
 static char adoc[] = "<BLOCK_DEV>";
diff --git a/utils.c b/utils.c
index 9e371fd..d4e733f 100644
--- a/utils.c
+++ b/utils.c
@@ -8,6 +8,7 @@
 #include <errno.h>
 #include <err.h>
 
+#include "version.h"
 #include "utils.h"
 
 const char *adjust_unit(double *ptr_bytes)
@@ -209,7 +210,7 @@ const long *ls_my_files(const char *path, long start_at, long end_at)
 void print_header(FILE *f, const char *name)
 {
 	fprintf(f,
-	"F3 %s 4.0\n"
+	"F3 %s " F3_STR_VERSION "\n"
 	"Copyright (C) 2010 Digirati Internet LTDA.\n"
 	"This is free software; see the source for copying conditions.\n"
 	"\n", name);
diff --git a/version.h b/version.h
new file mode 100644
index 0000000..108803d
--- /dev/null
+++ b/version.h
@@ -0,0 +1,6 @@
+#ifndef HEADER_VERSION_H
+#define HEADER_VERSION_H
+
+#define F3_STR_VERSION	"4.0"
+
+#endif	/* HEADER_VERSION_H */