diff --git a/launchwrapper-fabric/src/main/java/org/mcphackers/launchwrapper/fabric/FabricBridge.java b/launchwrapper-fabric/src/main/java/org/mcphackers/launchwrapper/fabric/FabricBridge.java
index a3c2a3a..247717f 100644
--- a/launchwrapper-fabric/src/main/java/org/mcphackers/launchwrapper/fabric/FabricBridge.java
+++ b/launchwrapper-fabric/src/main/java/org/mcphackers/launchwrapper/fabric/FabricBridge.java
@@ -36,7 +36,7 @@ public void launch() {
         LaunchClassLoader loader = getLoader();
         loader.overrideClassSource(FABRIC_KNOT, gameProdiverSource());
         loader.overrideClassSource(FABRIC_KNOT_CLIENT, gameProdiverSource());
-        loader.invokeMain(FABRIC_KNOT_CLIENT, config.getArgs());
+        loader.invokeMain(FABRIC_KNOT_CLIENT.replace('/', '.'), config.getArgs());
     }
 
     public static FabricBridge getInstance() {