diff --git a/lib/neutron_plugins/embrane b/lib/neutron_plugins/embrane
index 6b4819e..2028496 100644
--- a/lib/neutron_plugins/embrane
+++ b/lib/neutron_plugins/embrane
@@ -10,7 +10,8 @@
 source $TOP_DIR/lib/neutron_plugins/openvswitch
 
 function save_function {
-    local ORIG_FUNC=$(declare -f $1)
+    local ORIG_FUNC
+    ORIG_FUNC=$(declare -f $1)
     local NEW_FUNC="$2${ORIG_FUNC#$1}"
     eval "$NEW_FUNC"
 }