diff --git a/impl/maven-impl/src/main/java/org/apache/maven/impl/DefaultSettingsBuilder.java b/impl/maven-impl/src/main/java/org/apache/maven/impl/DefaultSettingsBuilder.java
index 175eb7bc1547..c5d22ad420a8 100644
--- a/impl/maven-impl/src/main/java/org/apache/maven/impl/DefaultSettingsBuilder.java
+++ b/impl/maven-impl/src/main/java/org/apache/maven/impl/DefaultSettingsBuilder.java
@@ -48,6 +48,7 @@
 import org.apache.maven.api.services.xml.XmlReaderException;
 import org.apache.maven.api.services.xml.XmlReaderRequest;
 import org.apache.maven.api.settings.Activation;
+import org.apache.maven.api.settings.IdentifiableBase;
 import org.apache.maven.api.settings.Profile;
 import org.apache.maven.api.settings.Repository;
 import org.apache.maven.api.settings.RepositoryPolicy;
@@ -68,7 +69,12 @@ public class DefaultSettingsBuilder implements SettingsBuilder {
 
     private final DefaultSettingsValidator settingsValidator = new DefaultSettingsValidator();
 
-    private final SettingsMerger settingsMerger = new SettingsMerger();
+    private final SettingsMerger settingsMerger = new SettingsMerger() {
+        @Override
+        protected KeyComputer<Repository> getRepositoryKey() {
+            return IdentifiableBase::getId;
+        }
+    };
 
     private final SettingsXmlFactory settingsXmlFactory;
 
diff --git a/impl/maven-impl/src/main/java/org/apache/maven/impl/model/DefaultProfileInjector.java b/impl/maven-impl/src/main/java/org/apache/maven/impl/model/DefaultProfileInjector.java
index 234df08dcf91..206e8d4834c8 100644
--- a/impl/maven-impl/src/main/java/org/apache/maven/impl/model/DefaultProfileInjector.java
+++ b/impl/maven-impl/src/main/java/org/apache/maven/impl/model/DefaultProfileInjector.java
@@ -39,6 +39,8 @@
 import org.apache.maven.api.model.ReportPlugin;
 import org.apache.maven.api.model.ReportSet;
 import org.apache.maven.api.model.Reporting;
+import org.apache.maven.api.model.Repository;
+import org.apache.maven.api.model.RepositoryBase;
 import org.apache.maven.api.services.ModelBuilderRequest;
 import org.apache.maven.api.services.ModelProblemCollector;
 import org.apache.maven.api.services.model.ProfileInjector;
@@ -238,5 +240,10 @@ protected void mergeReportPlugin_ReportSets(
                 builder.reportSets(merged.values());
             }
         }
+
+        @Override
+        protected KeyComputer<Repository> getRepositoryKey() {
+            return RepositoryBase::getId;
+        }
     }
 }