diff --git a/lang/occam/comp/occam.g b/lang/occam/comp/occam.g
index 9af4a8c50..e314d3375 100644
--- a/lang/occam/comp/occam.g
+++ b/lang/occam/comp/occam.g
@@ -348,7 +348,7 @@ const_def { register char *name; struct expr *e; }:
 	  '=' expression(&e)
 				{	if (!constant(e) && !arr_constant(e))
 						nonconst("expression in constant definition");
-					info.const=e;
+					info.t_const=e;
 					insert(name, T_CONST|T_USED, 0, &info);
 				}
 	;
@@ -457,7 +457,7 @@ item(register struct expr **e;)
 					var=searchall(token.t_sval);
 
 					if (var_constant(var))
-						*e=copy_const(var->s_info.const);
+						*e=copy_const(var->s_info.t_const);
 					else {
 						if (var_proc(var))
 							pars=var->s_info.proc.pars;
diff --git a/lang/occam/comp/symtab.c b/lang/occam/comp/symtab.c
index 991da805d..43f0591b6 100644
--- a/lang/occam/comp/symtab.c
+++ b/lang/occam/comp/symtab.c
@@ -121,7 +121,7 @@ static void sym_destroy(ps) register struct symbol *ps;
 			}
 		} else
 		if ((ps->s_type&T_TYPE)==T_CONST)
-			destroy(ps->s_info.const);
+			destroy(ps->s_info.t_const);
 		free(ps->s_name);
 		free(ps);
 	}
diff --git a/lang/occam/comp/symtab.h b/lang/occam/comp/symtab.h
index 1338b5dd7..45b03d2ee 100644
--- a/lang/occam/comp/symtab.h
+++ b/lang/occam/comp/symtab.h
@@ -54,7 +54,7 @@ union type_info {
 		int offset;	/* from its local level or builtin name */
 	} vc;			/* Variable or channel */
 
-	struct expr *const;
+	struct expr *t_const;
 
 	struct {
 		union storage st;