diff --git a/src/mlpack/methods/ann/layer/lstm_impl.hpp b/src/mlpack/methods/ann/layer/lstm_impl.hpp
index 8c608198b6..b1bd784194 100644
--- a/src/mlpack/methods/ann/layer/lstm_impl.hpp
+++ b/src/mlpack/methods/ann/layer/lstm_impl.hpp
@@ -66,46 +66,46 @@ template <typename InputDataType, typename OutputDataType>
 LSTM<InputDataType, OutputDataType>& 
 LSTM<InputDataType, OutputDataType> :: operator=(const LSTM& layer)
 {
-    if(this != &layer)
-    {
-        inSize = layer.inSize;
-        outSize = layer.outSize;
-        rho = layer.rho;
-        forwardStep = layer.forwardStep;
-        backwardStep = layer.backwardStep;
-        gradientStep = layer.gradientStep;
-        weights = layer.weights;
-        batchSize = layer.batchSize;
-        batchStep = layer.batchStep;
-        gradientStepIdx = layer.gradientStepIdx;
-        grad = layer.grad;
-        rhoSize = layer.rho;
-        bpttSteps = layer.bpttSteps;
-    }
-    return *this; 
+  if (this != &layer)
+  {
+    inSize = layer.inSize;
+    outSize = layer.outSize;
+    rho = layer.rho;
+    forwardStep = layer.forwardStep;
+    backwardStep = layer.backwardStep;
+    gradientStep = layer.gradientStep;
+    weights = layer.weights;
+    batchSize = layer.batchSize;
+    batchStep = layer.batchStep;
+    gradientStepIdx = layer.gradientStepIdx;
+    grad = layer.grad;
+    rhoSize = layer.rho;
+    bpttSteps = layer.bpttSteps;
+  }
+  return *this; 
 }
 
 template <typename InputDataType, typename OutputDataType>
 LSTM<InputDataType, OutputDataType>& 
 LSTM<InputDataType, OutputDataType> :: operator=(LSTM&& layer)
 {
-    if(this != &layer)
-    {
-        inSize = std::move(layer.inSize);
-        outSize = std::move(layer.outSize);
-        rho = std::move(layer.rho);
-        forwardStep = std::move(layer.forwardStep);
-        backwardStep = std::move(layer.backwardStep);
-        gradientStep = std::move(layer.gradientStep);
-        weights = std::move(layer.weights);
-        batchSize = std::move(layer.batchSize);
-        batchStep = std::move(layer.batchStep);
-        gradientStepIdx = std::move(layer.gradientStepIdx);
-        grad = std::move(layer.grad);
-        rhoSize = std::move(layer.rho);
-        bpttSteps = std::move(layer.bpttSteps);
-    }
-    return *this; 
+  if (this != &layer)
+  {
+    inSize = std::move(layer.inSize);
+    outSize = std::move(layer.outSize);
+    rho = std::move(layer.rho);
+    forwardStep = std::move(layer.forwardStep);
+    backwardStep = std::move(layer.backwardStep);
+    gradientStep = std::move(layer.gradientStep);
+    weights = std::move(layer.weights);
+    batchSize = std::move(layer.batchSize);
+    batchStep = std::move(layer.batchStep);
+    gradientStepIdx = std::move(layer.gradientStepIdx);
+    grad = std::move(layer.grad);
+    rhoSize = std::move(layer.rho);
+    bpttSteps = std::move(layer.bpttSteps);
+  }
+  return *this; 
 }
 
 template <typename InputDataType, typename OutputDataType>