diff --git a/src/app/tabs/run-tab.js b/src/app/tabs/run-tab.js
index 8038afd1cc..94f6ba4e88 100644
--- a/src/app/tabs/run-tab.js
+++ b/src/app/tabs/run-tab.js
@@ -281,7 +281,7 @@ function contractDropdown (events, appAPI, appEvents, instanceContainer) {
 
     var constructor = txHelper.getConstructorInterface(selectedContract.contract.object.abi)
     var args = createButtonInput.value
-    txFormat.buildData(selectedContract.name, selectedContract.contract.object, appAPI.getContracts(), true, constructor, args, appAPI.udapp(), (error, data) => {
+    txFormat.buildData(selectedContract.name, selectedContract.contract.object, appAPI.getContracts(), true, constructor, args, (error, data) => {
       if (!error) {
         appAPI.logMessage(`creation of ${selectedContract.name} pending...`)
         txExecution.createContract(data, appAPI.udapp(), (error, txResult) => {
@@ -306,6 +306,9 @@ function contractDropdown (events, appAPI, appEvents, instanceContainer) {
       }
     }, (msg) => {
       appAPI.logMessage(msg)
+    }, (data, runTxCallback) => {
+      // called for libraries deployment
+      appAPI.udapp().runTx(data, runTxCallback)
     })
   }
 
diff --git a/src/universal-dapp.js b/src/universal-dapp.js
index 1189745d97..e3d676e835 100644
--- a/src/universal-dapp.js
+++ b/src/universal-dapp.js
@@ -162,7 +162,7 @@ UniversalDApp.prototype.call = function (isUserAction, args, value, lookupOnly,
       logMsg = `call to ${args.contractName}.${(args.funABI.name) ? args.funABI.name : '(fallback)'}`
     }
   }
-  txFormat.buildData(args.contractName, args.contractAbi, self.contracts, false, args.funABI, value, self, (error, data) => {
+  txFormat.buildData(args.contractName, args.contractAbi, self.contracts, false, args.funABI, value, (error, data) => {
     if (!error) {
       if (isUserAction) {
         if (!args.funABI.constant) {
@@ -194,6 +194,12 @@ UniversalDApp.prototype.call = function (isUserAction, args, value, lookupOnly,
     }
   }, (msg) => {
     self._api.logMessage(msg)
+  }, (data, runTxCallback) => {
+    // called for libraries deployment
+    self.runTx(data, runTxCallback)
+  })
+}
+
   })
 }