diff --git a/gcc/cobol/ec.h b/gcc/cobol/ec.h
index 16d28d7b2b433f7f64f50f9499e7bcb3862db411..d6df47dc27b6b196098eb41521f92df39a935127 100644
--- a/gcc/cobol/ec.h
+++ b/gcc/cobol/ec.h
@@ -210,6 +210,12 @@ enum ec_disposition_t {
   ec_category_fatal_e,
   ec_category_nonfatal_e,
   ec_category_implementor_e,
+
+  // unimplemented equivalents
+  uc_category_none_e =        0x80 + ec_category_none_e,
+  uc_category_fatal_e =       0x80 + ec_category_fatal_e,
+  uc_category_nonfatal_e =    0x80 + ec_category_nonfatal_e,
+  uc_category_implementor_e = 0x80 + ec_category_implementor_e,
 };
 
 /*