diff --git a/drivers/isdn/hardware/eicon/diva_didd.c b/drivers/isdn/hardware/eicon/diva_didd.c
index fab6ccfb00d59cf35b7f50100c672efb9d3ad3d1..21468be0f3d5502829b9122db09c5cc89372cb04 100644
--- a/drivers/isdn/hardware/eicon/diva_didd.c
+++ b/drivers/isdn/hardware/eicon/diva_didd.c
@@ -29,7 +29,7 @@ static char *main_revision = "$Revision: 1.13.6.4 $";
 static char *DRIVERNAME =
 	"Eicon DIVA - DIDD table (http://www.melware.net)";
 static char *DRIVERLNAME = "divadidd";
-char *DRIVERRELEASE_DIDD = "2.0";
+static char *DRIVERRELEASE_DIDD = "2.0";
 
 MODULE_DESCRIPTION("DIDD table driver for diva drivers");
 MODULE_AUTHOR("Cytronics & Melware, Eicon Networks");