diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 03ab8808bd..39f8ca0d6e 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,8 @@
+2011-12-06  Maciej W. Rozycki  <macro@codesourcery.com>
+
+	* mips-tdep.c (deal_with_atomic_sequence): Fix the handling
+	of BLTZ* and BGEZ* instructions.
+
 2011-12-06  Maciej W. Rozycki  <macro@codesourcery.com>
 
 	* mips-tdep.c (mips_pc_is_mips16): Reverse the order of checks
diff --git a/gdb/mips-tdep.c b/gdb/mips-tdep.c
index 2e2383664f..4f1c940d9f 100644
--- a/gdb/mips-tdep.c
+++ b/gdb/mips-tdep.c
@@ -2620,7 +2620,7 @@ deal_with_atomic_sequence (struct gdbarch *gdbarch,
 	    return 0; /* fallback to the standard single-step code.  */
 	  break;
 	case 1: /* REGIMM */
-	  is_branch = ((itype_rt (insn) & 0xc0) == 0); /* B{LT,GE}Z* */
+	  is_branch = ((itype_rt (insn) & 0xc) == 0); /* B{LT,GE}Z* */
 	  break;
 	case 2: /* J */
 	case 3: /* JAL */