diff --git a/gdb/ax-gdb.c b/gdb/ax-gdb.c
index cc057f89a0..bd813380fe 100644
--- a/gdb/ax-gdb.c
+++ b/gdb/ax-gdb.c
@@ -877,6 +877,12 @@ gen_usual_unary (struct expression *exp, struct agent_expr *ax,
     case TYPE_CODE_STRUCT:
     case TYPE_CODE_UNION:
       return;
+
+      /* If the value is an enum or a bool, call it an integer.  */
+    case TYPE_CODE_ENUM:
+    case TYPE_CODE_BOOL:
+      value->type = builtin_type (exp->gdbarch)->builtin_int;
+      break;
     }
 
   /* If the value is an lvalue, dereference it.  */