diff --git a/forge/build.gradle b/forge/build.gradle
index f3b1af41d..3c79ac947 100644
--- a/forge/build.gradle
+++ b/forge/build.gradle
@@ -51,6 +51,16 @@ afterEvaluate {
     runClient {
         dependsOn(tasks.named('copyAllResources'))
     }
+    
+    // TODO this isn't a great place for these, but `tasks.build.doLast` doesn't always work and I'm not sure of a better place right now
+    tasks.runClient.doFirst {
+        // TODO can we just ignore these folders instead?
+        //  deleting them may cause issues if the OS locks the files
+        //  and it feels hacky
+        delete file("../common/build/libs")
+        delete file("../coreSubProjects/core/build/libs")
+        delete file("../coreSubProjects/api/build/libs")
+    }
 }
 
 remapJar {