diff --git a/src/drv/drvJgvtr1.c b/src/drv/drvJgvtr1.c
index 21103c494..2b54dacbc 100644
--- a/src/drv/drvJgvtr1.c
+++ b/src/drv/drvJgvtr1.c
@@ -336,7 +336,7 @@ jgvtr1DoneTask()
 
 	/* dont allow two of this task */
 	if(started)
-	  exit();
+	  exit(1);
 	started = TRUE;
 
     	while(TRUE){