diff --git a/.smalltalk.ston b/.smalltalk.ston
index 1783492..4480f89 100644
--- a/.smalltalk.ston
+++ b/.smalltalk.ston
@@ -2,10 +2,13 @@ SmalltalkCISpec {
   #loading : [
     SCIMetacelloLoadSpec {
       #baseline : 'SustainableSimulations',
+      #directory : 'src',
+      #load : [ 'tests' ],
       #platforms : [ #squeak ]
     }
   ],
   #testing : {
+  #categories : [ 'SustainableSimulations-Tests' ]
     #coverage : {
       #packages : [ 'SustainableSimulations-Core.*', 'SustainableSimulations-Roads.*', 'SustainableSimulations-UI.*' ]
     }