diff --git a/gas/ChangeLog b/gas/ChangeLog
index eaf5c0364f..ae4c486358 100644
--- a/gas/ChangeLog
+++ b/gas/ChangeLog
@@ -1,3 +1,8 @@
+2014-06-18  DJ Delorie  <dj@redhat.com>
+
+	* config/rx-parse.y (BSET, BCLR, BTST, BNOT, BMCMD): Make .B
+	suffix optional.
+
 2014-06-17  Hans-Peter Nilsson  <hp@bitrange.com>
 
 	* config/tc-mmix.c (loc_assert_s): New member frag.
diff --git a/gas/config/rx-parse.y b/gas/config/rx-parse.y
index c4cba9f718..d93b4f66b5 100644
--- a/gas/config/rx-parse.y
+++ b/gas/config/rx-parse.y
@@ -636,13 +636,13 @@ statement :
 	| BNOT REG ',' REG
 	  { id24 (1, 0x6f, 0x00); F ($4, 16, 4); F ($2, 20, 4); }
 
-	| BSET REG ',' disp '[' REG ']' DOT_B
+	| BSET REG ',' disp '[' REG ']' opt_b
 	  { id24 (1, 0x60, 0x00); F ($6, 16, 4); F ($2, 20, 4); DSP ($4, 14, BSIZE); }
-	| BCLR REG ',' disp '[' REG ']' DOT_B
+	| BCLR REG ',' disp '[' REG ']' opt_b
 	  { id24 (1, 0x64, 0x00); F ($6, 16, 4); F ($2, 20, 4); DSP ($4, 14, BSIZE); }
-	| BTST REG ',' disp '[' REG ']' DOT_B
+	| BTST REG ',' disp '[' REG ']' opt_b
 	  { id24 (1, 0x68, 0x00); F ($6, 16, 4); F ($2, 20, 4); DSP ($4, 14, BSIZE); }
-	| BNOT REG ',' disp '[' REG ']' DOT_B
+	| BNOT REG ',' disp '[' REG ']' opt_b
 	  { id24 (1, 0x6c, 0x00); F ($6, 16, 4); F ($2, 20, 4); DSP ($4, 14, BSIZE); }
 
 /* ---------------------------------------------------------------------- */
@@ -664,13 +664,13 @@ statement :
 
 /* ---------------------------------------------------------------------- */
 
-	| BMCND '#' EXPR ',' disp '[' REG ']' DOT_B
+	| BMCND '#' EXPR ',' disp '[' REG ']' opt_b
 	  { id24 (1, 0xe0, 0x00); F ($1, 20, 4); FE ($3, 11, 3);
 	      F ($7, 16, 4); DSP ($5, 14, BSIZE); }
 
 /* ---------------------------------------------------------------------- */
 
-	| BNOT '#' EXPR ',' disp '[' REG ']' DOT_B
+	| BNOT '#' EXPR ',' disp '[' REG ']' opt_b
 	  { id24 (1, 0xe0, 0x0f); FE ($3, 11, 3); F ($7, 16, 4);
 	      DSP ($5, 14, BSIZE); }
 
@@ -930,6 +930,10 @@ opt_l	: 	{}
 	| DOT_L {}
 	;
 
+opt_b	: 	{}
+	| DOT_B {}
+	;
+
 %%
 /* ====================================================================== */