diff --git a/shared/config.vapi b/shared/config.vapi
index 1b0d8d7..e25bfbc 100644
--- a/shared/config.vapi
+++ b/shared/config.vapi
@@ -9,7 +9,6 @@ namespace Config {
     public const string VERSION_SUFFIX;
     public const string VCS_TAG;
     public const string PROFILE;
-    public const string CORES_DIR;
     public const string DATA_DIR;
     public const string RUNNER_PATH;
 }
diff --git a/src/core-register.vala b/src/core-register.vala
index 892aca7..2485cc7 100644
--- a/src/core-register.vala
+++ b/src/core-register.vala
@@ -15,7 +15,7 @@ public class Highscore.CoreRegister : Object {
         suggested_cores = new HashTable<string, SuggestedCore?> (str_hash, str_equal);
 
         try {
-            scan_directory (File.new_for_path (Config.CORES_DIR));
+            scan_directory (File.new_for_path (Environment.get_variable ("HIGHSCORE_CORES_DIR")));
         } catch (Error e) {
             critical ("Failed to scan cores: %s", e.message);
         }