diff --git a/ipmitool/include/ipmitool/ipmi.h b/ipmitool/include/ipmitool/ipmi.h
index d63632a..e31e9fb 100644
--- a/ipmitool/include/ipmitool/ipmi.h
+++ b/ipmitool/include/ipmitool/ipmi.h
@@ -207,6 +207,6 @@ struct ipmi_rs {
 #define IPMI_BMC_SLAVE_ADDR		0x20
 #define IPMI_REMOTE_SWID		0x81
 
-const struct valstr completion_code_vals[25];
+extern const struct valstr completion_code_vals[25];
 
 #endif /* IPMI_H */