diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 96f3259637d1..d5643ceaae36 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2016-08-01  Georg-Johann Lay  <avr@gjlay.de>
+
+	PR target/72767
+	* config/avr/avr.md (length) [branch]: Correct insn length
+	attribute for forward branches.
+
 2016-08-01  Georg-Johann Lay  <avr@gjlay.de>
 
 	* doc/extend.texi (AVR Built-in Functions): Document
diff --git a/gcc/config/avr/avr.md b/gcc/config/avr/avr.md
index 4c9037fa5073..23790b6ac7fa 100644
--- a/gcc/config/avr/avr.md
+++ b/gcc/config/avr/avr.md
@@ -112,12 +112,12 @@
 (define_attr "length" ""
   (cond [(eq_attr "type" "branch")
          (if_then_else (and (ge (minus (pc) (match_dup 0))
-                                (const_int -63))
+                                (const_int -62))
                             (le (minus (pc) (match_dup 0))
                                 (const_int 62)))
                        (const_int 1)
                        (if_then_else (and (ge (minus (pc) (match_dup 0))
-                                              (const_int -2045))
+                                              (const_int -2044))
                                           (le (minus (pc) (match_dup 0))
                                               (const_int 2045)))
                                      (const_int 2)