diff --git a/src/main/java/org/apache/commons/math3/distribution/NormalDistribution.java b/src/main/java/org/apache/commons/math3/distribution/NormalDistribution.java
index ae6f937bc..79db716ca 100644
--- a/src/main/java/org/apache/commons/math3/distribution/NormalDistribution.java
+++ b/src/main/java/org/apache/commons/math3/distribution/NormalDistribution.java
@@ -153,7 +153,7 @@ public class NormalDistribution extends AbstractRealDistribution {
 
     /** {@inheritDoc} */
     @Override
-	public double logDensity(double x) {
+    public double logDensity(double x) {
         final double x0 = x - mean;
         final double x1 = x0 / standardDeviation;
         return -0.5 * x1 * x1 - logStandardDeviationPlusHalfLog2Pi;