diff --git a/gas/ChangeLog b/gas/ChangeLog
index 0a46fe1482..c6be4c076f 100644
--- a/gas/ChangeLog
+++ b/gas/ChangeLog
@@ -1,3 +1,8 @@
+2011-11-16  Maciej W. Rozycki  <macro@codesourcery.com>
+
+	* config/tc-mips.c (ISA_SUPPORTS_MCU_ASE): Also set if microMIPS
+	mode.
+
 2011-11-16  Maciej W. Rozycki  <macro@codesourcery.com>
 
 	* config/tc-mips.c (macro_build_jalr): Reverse a negative
diff --git a/gas/config/tc-mips.c b/gas/config/tc-mips.c
index 886bdce180..6d32a5e675 100644
--- a/gas/config/tc-mips.c
+++ b/gas/config/tc-mips.c
@@ -370,7 +370,8 @@ static int file_ase_mt;
 			     || mips_opts.isa == ISA_MIPS64R2)
 
 #define ISA_SUPPORTS_MCU_ASE (mips_opts.isa == ISA_MIPS32R2		\
-			      || mips_opts.isa == ISA_MIPS64R2)
+			      || mips_opts.isa == ISA_MIPS64R2		\
+			      || mips_opts.micromips)
 
 /* The argument of the -march= flag.  The architecture we are assembling.  */
 static int file_mips_arch = CPU_UNKNOWN;