diff --git a/include/opcode/mn10300.h b/include/opcode/mn10300.h
index 02e35328da..256271e7b3 100644
--- a/include/opcode/mn10300.h
+++ b/include/opcode/mn10300.h
@@ -54,7 +54,7 @@ extern const struct mn10300_opcode mn10300_opcodes[];
 extern const int mn10300_num_opcodes;
 
 
-/* The operands table is an array of struct powerpc_operand.  */
+/* The operands table is an array of struct mn10300_operand.  */
 
 struct mn10300_operand
 {
@@ -98,6 +98,12 @@ extern const struct mn10300_operand mn10300_operands[];
 
 #define MN10300_OPERAND_REG_LIST 0x800
 
+#define MN10300_OPERAND_PCREL 0x1000
+
+#define MN10300_OPERAND_MEMADDR 0x2000
+
+#define MN10300_OPERAND_RELAX 0x3000
+
 /* Opcode Formats.  */
 #define FMT_S0 1
 #define FMT_S1 2