diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/lib/ObjectId.java b/org.eclipse.jgit/src/org/eclipse/jgit/lib/ObjectId.java
index de7e207ac..4edb38c5d 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/lib/ObjectId.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/lib/ObjectId.java
@@ -111,16 +111,16 @@ public static final String toString(final ObjectId i) {
 	}
 
 	/**
-	 * Compare to object identifier byte sequences for equality.
+	 * Compare two object identifier byte sequences for equality.
 	 *
 	 * @param firstBuffer
 	 *            the first buffer to compare against. Must have at least 20
-	 *            bytes from position ai through the end of the buffer.
+	 *            bytes from position fi through the end of the buffer.
 	 * @param fi
 	 *            first offset within firstBuffer to begin testing.
 	 * @param secondBuffer
-	 *            the second buffer to compare against. Must have at least 2
-	 *            bytes from position bi through the end of the buffer.
+	 *            the second buffer to compare against. Must have at least 20
+	 *            bytes from position si through the end of the buffer.
 	 * @param si
 	 *            first offset within secondBuffer to begin testing.
 	 * @return true if the two identifiers are the same.