diff --git a/lang/cs/Org.Apache.REEF.Driver/Org.Apache.REEF.Driver.csproj b/lang/cs/Org.Apache.REEF.Driver/Org.Apache.REEF.Driver.csproj
index 9e26254..74fbf5f 100644
--- a/lang/cs/Org.Apache.REEF.Driver/Org.Apache.REEF.Driver.csproj
+++ b/lang/cs/Org.Apache.REEF.Driver/Org.Apache.REEF.Driver.csproj
@@ -131,7 +131,7 @@
     <Compile Include="Evaluator\IAllocatedEvaluator.cs" />
     <Compile Include="Evaluator\ICompletedEvaluator.cs" />
     <Compile Include="Evaluator\IEvaluatorDescriptor.cs" />
-    <Compile Include="Evaluator\IEvaluatorRequest .cs" />
+    <Compile Include="Evaluator\IEvaluatorRequest.cs" />
     <Compile Include="Evaluator\IEvaluatorRequestor.cs" />
     <Compile Include="Evaluator\IFailedEvaluator.cs" />
     <Compile Include="FailedJob.cs" />