diff --git a/strace.c b/strace.c
index 48b4feb7..faf952fc 100644
--- a/strace.c
+++ b/strace.c
@@ -81,7 +81,7 @@ FILE *outf;
 struct tcb **tcbtab;
 unsigned int nprocs, tcbtabsize;
 char *progname;
-extern char version[];
+extern const char version[];
 extern char **environ;
 
 static struct tcb *pid2tcb P((int pid));
diff --git a/version.c b/version.c
index ff65ab9b..e18ffa4c 100644
--- a/version.c
+++ b/version.c
@@ -1 +1 @@
-char version[] = "strace -- version 4.4";
+const char version[] = "strace -- version 4.4.90";