diff --git a/src/senaite/ast/config.py b/src/senaite/ast/config.py
index ee44219..2667060 100644
--- a/src/senaite/ast/config.py
+++ b/src/senaite/ast/config.py
@@ -114,7 +114,7 @@
               u"(Susceptible, increased exposure) and R (Resistant)"),
         "choices": "0:|1:S|2:I|3:R",
         "sort_key": 530,
-        "result_type": "string",
+        "result_type": "select",
         "point_of_capture": AST_POINT_OF_CAPTURE,
         "calculation": AST_CALCULATION_TITLE,
     },
@@ -129,7 +129,7 @@
         # XXX This is a choices field, but choices are populated on creation
         "choices": "",
         "sort_key": 505,
-        "result_type": "string",
+        "result_type": "select",
         "point_of_capture": AST_POINT_OF_CAPTURE,
         "calculation": AST_CALCULATION_TITLE,
     },
@@ -187,7 +187,7 @@
         # XXX senaite.app.listing has no support for boolean types (interim)
         "type": "boolean",
         "sort_key": 540,
-        "result_type": "string",
+        "result_type": "select",
         "point_of_capture": AST_POINT_OF_CAPTURE,
         "calculation": AST_CALCULATION_TITLE,
     },
diff --git a/src/senaite/ast/setuphandlers.py b/src/senaite/ast/setuphandlers.py
index a12936a..b80b425 100644
--- a/src/senaite/ast/setuphandlers.py
+++ b/src/senaite/ast/setuphandlers.py
@@ -227,7 +227,7 @@ def setup_ast_services(portal, update_existing=True):
 
         description = settings.get("description", AUTOGENERATED)
         sort_key = settings.get("sort_key", 1000)
-        result_type = settings.get("result_type", "numeric")
+        result_type = settings.get("result_type", "select")
         poc = settings.get("point_of_capture", AST_POINT_OF_CAPTURE)
         calc_name = settings.get("calculation", AST_CALCULATION_TITLE)