diff --git a/src/clj/auto_ap/graphql/ledger.clj b/src/clj/auto_ap/graphql/ledger.clj
index f256a449..614d2fe7 100644
--- a/src/clj/auto_ap/graphql/ledger.clj
+++ b/src/clj/auto_ap/graphql/ledger.clj
@@ -9,7 +9,7 @@
             [clj-time.coerce :as coerce]
             [clojure.string :as str]
             [clj-time.core :as time]
-            [auto-ap.parse :as parse]
+            [auto-ap.parse.util :as parse]
             [datomic.api :as d]
             [auto-ap.parse.templates :as t]
             [auto-ap.datomic.clients :as d-clients]))
@@ -211,6 +211,8 @@
                                                                     (get all-client-locations (:client_code entry))
                                                                     (:location ea))
                                                            (throw (Exception. (str "Location '" (:location ea) "' not found."))))
+                                                         (when (< (or (:debit ea) (:credit ea)) 0.0)
+                                                           (throw (Exception. (str (or (:debit ea) (:credit ea)) "must be greater than 0."))))
                                                          (when (and (not (all-accounts (:account_identifier ea)))
                                                                     (not (get
                                                                           (get all-client-bank-accounts (:client_code entry))