diff --git a/libgcc/ChangeLog b/libgcc/ChangeLog
index 5f8854c6e0e..ce63774a457 100644
--- a/libgcc/ChangeLog
+++ b/libgcc/ChangeLog
@@ -1,3 +1,7 @@
+2016-12-12  George Spelvin  <linux@sciencehorizons.net>
+
+	* config/avr/lib1funcs.S (__ashrdi3): Fix typo from r243545.
+
 2016-12-12  George Spelvin  <linux@sciencehorizons.net>
 
 	* config/avr/lib1funcs.S (__ashldi3): Use __tmp_reg__ to restore
diff --git a/libgcc/config/avr/lib1funcs.S b/libgcc/config/avr/lib1funcs.S
index 6ca2b82a8cd..628c6d1a075 100644
--- a/libgcc/config/avr/lib1funcs.S
+++ b/libgcc/config/avr/lib1funcs.S
@@ -3120,7 +3120,7 @@ ENDF __bswapdi2
 ;; r25:r18 = ashr64 (r25:r18, r17:r16)
 DEFUN __ashrdi3
     sbrc    r25, 7
-    neg     SS
+    com     SS
     ;; FALLTHRU
 ENDF  __ashrdi3