diff --git a/scm-webapp/src/main/java/sonia/scm/BindingExtensionProcessor.java b/scm-webapp/src/main/java/sonia/scm/BindingExtensionProcessor.java
index 07df184863..666e925ddf 100644
--- a/scm-webapp/src/main/java/sonia/scm/BindingExtensionProcessor.java
+++ b/scm-webapp/src/main/java/sonia/scm/BindingExtensionProcessor.java
@@ -46,6 +46,8 @@ import sonia.scm.group.GroupListener;
 import sonia.scm.io.FileSystem;
 import sonia.scm.plugin.ext.Extension;
 import sonia.scm.plugin.ext.ExtensionProcessor;
+import sonia.scm.repository.BlameLinePreProcessor;
+import sonia.scm.repository.BlameLinePreProcessorFactory;
 import sonia.scm.repository.ChangesetPreProcessor;
 import sonia.scm.repository.ChangesetPreProcessorFactory;
 import sonia.scm.repository.FileObjectPreProcessor;
@@ -125,6 +127,12 @@ public class BindingExtensionProcessor implements ExtensionProcessor
     Multibinder<FileObjectPreProcessorFactory> fileObjectPreProcessorFactoryBinder =
       Multibinder.newSetBinder(binder, FileObjectPreProcessorFactory.class);
 
+    // blameline pre processor
+    Multibinder<BlameLinePreProcessor> blameLinePreProcessorBinder =
+      Multibinder.newSetBinder(binder, BlameLinePreProcessor.class);
+    Multibinder<BlameLinePreProcessorFactory> blameLinePreProcessorFactoryBinder =
+      Multibinder.newSetBinder(binder, BlameLinePreProcessorFactory.class);
+
     // repository service resolver
     Multibinder<RepositoryServiceResolver> repositoryServiceResolverBinder =
       Multibinder.newSetBinder(binder, RepositoryServiceResolver.class);
@@ -273,6 +281,27 @@ public class BindingExtensionProcessor implements ExtensionProcessor
 
         fileObjectPreProcessorFactoryBinder.addBinding().to(extensionClass);
       }
+      else if (BlameLinePreProcessor.class.isAssignableFrom(extensionClass))
+      {
+        if (logger.isInfoEnabled())
+        {
+          logger.info("bind BlameLinePreProcessor {}",
+                      extensionClass.getName());
+        }
+
+        blameLinePreProcessorBinder.addBinding().to(extensionClass);
+      }
+      else if (BlameLinePreProcessorFactory.class.isAssignableFrom(
+              extensionClass))
+      {
+        if (logger.isInfoEnabled())
+        {
+          logger.info("bind BlameLinePreProcessorFactory {}",
+                      extensionClass.getName());
+        }
+
+        blameLinePreProcessorFactoryBinder.addBinding().to(extensionClass);
+      }
       else if (RepositoryHook.class.isAssignableFrom(extensionClass))
       {
         if (logger.isInfoEnabled())