diff --git a/lib/core/engine.js b/lib/core/engine.js
index 671dc7e50..4724a831b 100644
--- a/lib/core/engine.js
+++ b/lib/core/engine.js
@@ -197,7 +197,7 @@ class Engine {
     this.registerModule('deploytracker', {trackContracts: options.trackContracts});
     this.registerModule('specialconfigs');
     this.registerModule('console_listener', {ipc: self.ipc});
-    this.registerModule('contracts_manager');
+    this.registerModule('contracts_manager', {compileOnceOnly: options.compileOnceOnly});
     this.registerModule('deployment', {plugins: this.plugins, onlyCompile: options.onlyCompile});
 
     this.events.on('file-event', function (fileType) {
diff --git a/lib/modules/contracts_manager/index.js b/lib/modules/contracts_manager/index.js
index 5f4023e9b..922e9f40d 100644
--- a/lib/modules/contracts_manager/index.js
+++ b/lib/modules/contracts_manager/index.js
@@ -83,7 +83,6 @@ class ContractsManager {
       function compileContracts(callback) {
         self.events.emit("status", __("Compiling..."));
         if (self.compileOnceOnly && self.compiledContracts && Object.keys(self.compiledContracts).length) {
-          // Only compile once for tests
           return callback();
         }
         self.events.request("compiler:contracts", self.contractsFiles, compilerOptions, function (err, compiledObject) {