diff --git a/gas/config/mips-big.mt b/gas/config/mips-big.mt
new file mode 100644
index 0000000000..31e773a14d
--- /dev/null
+++ b/gas/config/mips-big.mt
@@ -0,0 +1 @@
+TDEFINES=-DTARGET_BYTES_BIG_ENDIAN
diff --git a/gas/config/mips-lit.mt b/gas/config/mips-lit.mt
new file mode 100644
index 0000000000..9e240e8166
--- /dev/null
+++ b/gas/config/mips-lit.mt
@@ -0,0 +1 @@
+TDEFINES=-DTARGET_BYTES_LITTLE_ENDIAN