diff --git a/gcc/config/a29k/a29k.md b/gcc/config/a29k/a29k.md
index f4694f37c33..f6cc93ebbb7 100644
--- a/gcc/config/a29k/a29k.md
+++ b/gcc/config/a29k/a29k.md
@@ -1687,7 +1687,7 @@
 		   (and:SI (match_dup 0)
 			     (const_int 2)))])
    (set (zero_extract:SI (match_dup 2)
-			 (const_int 8)
+			 (const_int 16)
 			 (ashift:SI (reg:SI 177)
 				    (const_int 3)))
 	(match_operand:HI 1 "gpc_reg_operand" ""))