diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index ca7b3e85641..d3a30e9073a 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,7 @@
+2013-12-01  Bernd Edlinger <bernd.edlinger@hotmail.de>
+
+	* expr.c (emit_group_store): Corrected BITFIELD_END parameter.
+
 2013-11-30  Paulo Matos  <pmatos@broadcom.com>
 	    Eric Botcazou  <ebotcazou@adacore.com>
 
diff --git a/gcc/expr.c b/gcc/expr.c
index 4815c886f77..aeff2ca58f4 100644
--- a/gcc/expr.c
+++ b/gcc/expr.c
@@ -2131,7 +2131,7 @@ emit_group_store (rtx orig_dst, rtx src, tree type ATTRIBUTE_UNUSED, int ssize)
 	  /* Make sure not to write past the end of the struct.  */
 	  store_bit_field (dest,
 			   adj_bytelen * BITS_PER_UNIT, bytepos * BITS_PER_UNIT,
-			   bytepos * BITS_PER_UNIT, ssize * BITS_PER_UNIT,
+			   bytepos * BITS_PER_UNIT, ssize * BITS_PER_UNIT - 1,
 			   VOIDmode, tmps[i]);
 	}