diff --git a/maven-script/maven-plugin-tools-model/src/main/java/org/apache/maven/tools/plugin/extractor/model/PluginMetadataParser.java b/maven-script/maven-plugin-tools-model/src/main/java/org/apache/maven/tools/plugin/extractor/model/PluginMetadataParser.java
index fc9c13d..1a830e9 100644
--- a/maven-script/maven-plugin-tools-model/src/main/java/org/apache/maven/tools/plugin/extractor/model/PluginMetadataParser.java
+++ b/maven-script/maven-plugin-tools-model/src/main/java/org/apache/maven/tools/plugin/extractor/model/PluginMetadataParser.java
@@ -78,6 +78,9 @@ public class PluginMetadataParser
                     descriptors.add( descriptor );
                 }
             }
+
+            reader.close();
+            reader = null;
         }
         catch ( IOException e )
         {