diff --git a/pom.xml b/pom.xml
index 7d5ba34..d2c3d75 100644
--- a/pom.xml
+++ b/pom.xml
@@ -142,6 +142,7 @@
                 <artifactId>maven-license-plugin</artifactId>
                 <configuration>
                     <header>src/licensing/header.txt</header>
+                    <skipExistingHeaders>true</skipExistingHeaders>
                     <headerDefinitions>
                         <headerDefinition>src/licensing/header-definitions.xml</headerDefinition>
                     </headerDefinitions>
diff --git a/src/licensing/header-definitions.xml b/src/licensing/header-definitions.xml
index 2792dce..39fb559 100644
--- a/src/licensing/header-definitions.xml
+++ b/src/licensing/header-definitions.xml
@@ -1,12 +1,12 @@
 <?xml version="1.0" encoding="ISO-8859-1"?>
 <additionalHeaders>
-    <javadoc_style>
-        <firstLine>/*</firstLine>
-        <beforeEachLine>*</beforeEachLine>
-        <endLine>*/</endLine>
-        <firstLineDetectionPattern>( |\t)*/\*( |\t)*$</firstLineDetectionPattern>
-        <lastLineDetectionPattern>( |\t)*\*/( |\t)*$</lastLineDetectionPattern>
-        <allowBlankLines>true</allowBlankLines>
-        <isMultiline>true</isMultiline>
-    </javadoc_style>
+  <javadoc_style>
+    <firstLine>/*</firstLine>
+    <beforeEachLine> * </beforeEachLine>
+    <endLine> */</endLine>
+    <firstLineDetectionPattern>( |\t)*/\*( |\t)*$</firstLineDetectionPattern>
+    <lastLineDetectionPattern>( |\t)*\*/( |\t)*$</lastLineDetectionPattern>
+    <allowBlankLines>true</allowBlankLines>
+    <isMultiline>true</isMultiline>
+  </javadoc_style>
 </additionalHeaders>
\ No newline at end of file