diff --git a/sim/microblaze/ChangeLog b/sim/microblaze/ChangeLog
index bed555ffdb4..c6b72b5de96 100644
--- a/sim/microblaze/ChangeLog
+++ b/sim/microblaze/ChangeLog
@@ -1,3 +1,7 @@
+2015-02-19  Mike Frysinger  <vapier@gentoo.org>
+
+	* microblaze.isa: Add "microblaze_" prefix to "or", "and", and "xor".
+
 2014-08-19  Alan Modra  <amodra@gmail.com>
 
 	* configure: Regenerate.
diff --git a/sim/microblaze/microblaze.isa b/sim/microblaze/microblaze.isa
index 0856c2b1aa4..4ad5692e777 100644
--- a/sim/microblaze/microblaze.isa
+++ b/sim/microblaze/microblaze.isa
@@ -261,19 +261,19 @@ INSTRUCTION(ncput,
             INST_TYPE_R1_IMM12,
             PC += INST_SIZE) 
 
-INSTRUCTION(or,
+INSTRUCTION(microblaze_or,
 	    0x20,
             INST_TYPE_RD_RA_RB,
 	    RD = RA | RB;
 	    PC += INST_SIZE)
 
-INSTRUCTION(and,
+INSTRUCTION(microblaze_and,
 	    0x21,
             INST_TYPE_RD_RA_RB,
 	    RD = RA & RB;
 	    PC += INST_SIZE)
 
-INSTRUCTION(xor,
+INSTRUCTION(microblaze_xor,
 	    0x22,
             INST_TYPE_RD_RA_RB,
 	    RD = RA ^ RB;