diff --git a/opentest4j.spec b/opentest4j.spec
index 7793ce4..6ab9b12 100644
--- a/opentest4j.spec
+++ b/opentest4j.spec
@@ -40,7 +40,7 @@ cp -p %{SOURCE100} pom.xml
   <build>
     <pluginManagement>
       <plugins>
-	<plugin>
+        <plugin>
           <artifactId>maven-jar-plugin</artifactId>
           <configuration>
             <archive>
@@ -52,7 +52,7 @@ cp -p %{SOURCE100} pom.xml
               </manifestEntries>
             </archive>
           </configuration>
-	</plugin>
+        </plugin>
       </plugins>
     </pluginManagement>
   </build>"