diff --git a/lib/introspect/transactiondeclaration.js b/lib/introspect/transactiondeclaration.js
index 9e117a81da..08aeb10ae0 100644
--- a/lib/introspect/transactiondeclaration.js
+++ b/lib/introspect/transactiondeclaration.js
@@ -67,10 +67,6 @@ class TransactionDeclaration extends ClassDeclaration {
             systemTypeDeclared = hasSystemType;
         }
 
-        if (!this.isSystemType() && this.idField && systemTypeDeclared) {
-            throw new IllegalModelException('Transaction should not specify an identifying field.', this.modelFile, this.ast.location);
-        }
-
         // perform general validation after specific validation.
         super.validate();
     }
diff --git a/package-lock.json b/package-lock.json
index a933fadb1b..f0fbd65f9e 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "composer-concerto",
-  "version": "0.31.2",
+  "version": "0.31.3",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index 5b1d6bdc81..7ab6947d4e 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "composer-concerto",
-  "version": "0.31.2",
-  "description": "Hyperledger Composer Concerto",
+  "version": "0.40.0",
+  "description": "Concerto",
   "engines": {
     "node": ">=8",
     "npm": ">=5"
diff --git a/test/introspect/transactiondeclaration.js b/test/introspect/transactiondeclaration.js
index 4d2edb3347..7dc1800eac 100644
--- a/test/introspect/transactiondeclaration.js
+++ b/test/introspect/transactiondeclaration.js
@@ -59,21 +59,5 @@ describe('TransactionDeclaration', () => {
             td.validate();
 
         });
-
-        it('should cover the other error paths', () => {
-            const model = `
-            namespace org.acme
-            transaction T identified by id{
-               o String id
-            }
-            `;
-
-            const modelFile = new ModelFile(modelManager, model);
-            let td = modelFile.getTransactionDeclaration('T');
-
-            (() => {
-                td.validate();
-            }).should.throw(/Transaction should not specify an identifying field./);
-        });
     });
 });