diff --git a/src/main/java/net/fabricmc/loom/configuration/providers/minecraft/MinecraftMappedProvider.java b/src/main/java/net/fabricmc/loom/configuration/providers/minecraft/MinecraftMappedProvider.java
index 0a61f2b..3729701 100644
--- a/src/main/java/net/fabricmc/loom/configuration/providers/minecraft/MinecraftMappedProvider.java
+++ b/src/main/java/net/fabricmc/loom/configuration/providers/minecraft/MinecraftMappedProvider.java
@@ -26,6 +26,7 @@ package net.fabricmc.loom.configuration.providers.minecraft;
 
 import java.io.File;
 import java.io.IOException;
+import java.nio.file.Files;
 import java.nio.file.Path;
 import java.util.Arrays;
 import java.util.Map;
@@ -111,6 +112,8 @@ public class MinecraftMappedProvider extends DependencyProvider {
 
 			getProject().getLogger().lifecycle(":remapping minecraft (TinyRemapper, " + fromM + " -> " + toM + ")");
 
+			Files.delete(output);
+
 			TinyRemapper remapper = getTinyRemapper(fromM, toM);
 
 			try (OutputConsumerPath outputConsumer = new OutputConsumerPath.Builder(output).build()) {