diff --git a/modules/openapi-generator/pom.xml b/modules/openapi-generator/pom.xml
index 05c16223a27..28a59c4522a 100644
--- a/modules/openapi-generator/pom.xml
+++ b/modules/openapi-generator/pom.xml
@@ -158,8 +158,8 @@
                     </execution>
                 </executions>
                 <configuration>
-                     <sourceDirectory>${basedir}/src/test/antlr4</sourceDirectory>
-					 <libDirectory>${basedir}/src/test/antlr4/imports</libDirectory>
+                    <sourceDirectory>${basedir}/src/test/antlr4</sourceDirectory>
+                    <libDirectory>${basedir}/src/test/antlr4/imports</libDirectory>
                     <outputDirectory>${project.build.directory}/generated-test-sources/antlr4</outputDirectory>
                 </configuration>
             </plugin>
diff --git a/pom.xml b/pom.xml
index 50606ea22eb..c57d642f819 100644
--- a/pom.xml
+++ b/pom.xml
@@ -269,7 +269,7 @@
                     <maxmemory>1g</maxmemory>
                     <failOnWarnings>false</failOnWarnings>
                     <doclint>none</doclint>
-					<excludePackageNames>org.openapitools.codegen.antlr4</excludePackageNames>
+                    <excludePackageNames>org.openapitools.codegen.antlr4</excludePackageNames>
                 </configuration>
                 <executions>
                     <execution>