diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/blame/BlameGenerator.java b/org.eclipse.jgit/src/org/eclipse/jgit/blame/BlameGenerator.java
index fa6fe75e6..4ad58c385 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/blame/BlameGenerator.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/blame/BlameGenerator.java
@@ -51,6 +51,7 @@
 import java.util.Collection;
 import java.util.Collections;
 
+import org.eclipse.jgit.annotations.Nullable;
 import org.eclipse.jgit.blame.Candidate.BlobCandidate;
 import org.eclipse.jgit.blame.Candidate.ReverseCandidate;
 import org.eclipse.jgit.blame.ReverseWalk.ReverseCommit;
@@ -238,11 +239,13 @@ public BlameGenerator setFollowFileRenames(boolean follow) {
 	}
 
 	/**
-	 * Obtain the RenameDetector if {@code setFollowFileRenames(true)}.
+	 * Obtain the RenameDetector, allowing the application to configure its
+	 * settings for rename score and breaking behavior.
 	 *
-	 * @return the rename detector, allowing the application to configure its
-	 *         settings for rename score and breaking behavior.
+	 * @return the rename detector, or {@code null} if
+	 *         {@code setFollowFileRenames(false)}.
 	 */
+	@Nullable
 	public RenameDetector getRenameDetector() {
 		return renameDetector;
 	}