diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/pack/PackWriter.java b/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/pack/PackWriter.java
index 2e6812c1c..54a5826c0 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/pack/PackWriter.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/pack/PackWriter.java
@@ -1996,7 +1996,7 @@ public class PackWriter {
 			otp.clearReuseAsIs();
 		}
 
-		otp.setDeltaAttempted(next.wasDeltaAttempted());
+		otp.setDeltaAttempted(reuseDeltas & next.wasDeltaAttempted());
 		otp.select(next);
 	}