diff --git a/remix-tests/src/deployer.ts b/remix-tests/src/deployer.ts
index 8e7c541e4e..44b1f759b3 100644
--- a/remix-tests/src/deployer.ts
+++ b/remix-tests/src/deployer.ts
@@ -102,7 +102,8 @@ export function deployAll(compileResult: object, web3: Web3, callback) {
                 let funAbi = null // no need to set the abi for encoding the constructor
                 let params = '' // we suppose that the test contract does not have any param in the constructor
                 remixLib.execution.txFormat.encodeConstructorCallAndDeployLibraries(contractName, contract.raw, compileResult, params, funAbi, encodeDataFinalCallback, encodeDataStepCallback, encodeDataDeployLibraryCallback)
-            }, function () {
+            }, function (err) {
+                if(err) next(err)
                 next(null, contracts)
             })
         }
diff --git a/remix-tests/src/runTestSources.ts b/remix-tests/src/runTestSources.ts
index c7aa8890b1..6c88c4008e 100644
--- a/remix-tests/src/runTestSources.ts
+++ b/remix-tests/src/runTestSources.ts
@@ -51,7 +51,7 @@ export async function runTestSources(contractSources: SrcIfc, versionUrl: string
             }
             deployAll(compilationResult, web3, (err, contracts) => {
                 if (err) {
-                    next(err)
+                    next([{message: 'contract deployment failed: ' + err.message, severity: 'error'}]) // IDE expects errors in array
                 }
 
                 next(null, compilationResult, contracts)