diff --git a/src/clj/auto_ap/ssr/transaction/common.clj b/src/clj/auto_ap/ssr/transaction/common.clj
index cb034654..41a665a1 100644
--- a/src/clj/auto_ap/ssr/transaction/common.clj
+++ b/src/clj/auto_ap/ssr/transaction/common.clj
@@ -43,7 +43,9 @@
                              [:vendor {:optional true :default nil} [:maybe  [:entity-map {:pull [:db/id :vendor/name]}]]]
                              [:bank-account {:optional true :default nil} [:maybe  [:entity-map {:pull [:db/id :bank-account/numeric-code]}]]]
                               [:account {:optional true :default nil} [:maybe [:entity-map {:pull [:db/id :account/name]}]]]
-                             [:linked-to {:optional true} [:maybe [:enum "payment" "expected-deposit" "invoice" "none"]]]
+                             [:linked-to {:optional true}
+                              [:maybe [:enum {:decode/string {:enter #(if (seq %) % nil)}}
+                                       "payment" "expected-deposit" "invoice" "none"]]]
                              [:location {:optional true} [:maybe [:string {:decode/string strip}]]]
                              [:potential-duplicates {:optional true}
                               [:maybe [:boolean {:decode/string {:enter #(cond (= % "on") true