diff --git a/justfile b/justfile
index cb6ca01..7941757 100644
--- a/justfile
+++ b/justfile
@@ -4,8 +4,9 @@ alias c := clean
 
 build:
     mkdir -p build
-    tsc --outFile build/rechner.js src/rechner.ts
     cat src/data/* | toml2json > build/gewichtungen.json
+    # typescript compilation depends on gewichtungen.json
+    tsc --outFile build/rechner.js src/rechner.ts
     cp src/index.html build/index.html
 
 clean:
diff --git a/src/rechner.ts b/src/rechner.ts
index f395e87..1e8cbf3 100644
--- a/src/rechner.ts
+++ b/src/rechner.ts
@@ -13,3 +13,6 @@
 // 
 // You should have received a copy of the GNU General Public License
 // along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+import gewichtungen from '../build/gewichtungen.json'
+