diff --git a/agent.sh b/agent.sh
index f98cabe10156024899b7480b5be2affaf9d24e8a..8f162cdd97349ee756f6d4ae023268825f8b38b5 100755
--- a/agent.sh
+++ b/agent.sh
@@ -109,7 +109,7 @@ function elapsedTime()
     return $?
 }
 
-declare PREFIX="$(dirname $(readlink -f $0))"
+export PREFIX="$(dirname $(readlink -f $0))"
 source ${PREFIX}/load-config.sh || exit 3
 source ${PREFIX}/client/common.sh