diff --git a/src/main/java/net/fabricmc/loom/configuration/providers/minecraft/mapped/ProcessedNamedMinecraftProvider.java b/src/main/java/net/fabricmc/loom/configuration/providers/minecraft/mapped/ProcessedNamedMinecraftProvider.java
index b0009bcb..99c97f18 100644
--- a/src/main/java/net/fabricmc/loom/configuration/providers/minecraft/mapped/ProcessedNamedMinecraftProvider.java
+++ b/src/main/java/net/fabricmc/loom/configuration/providers/minecraft/mapped/ProcessedNamedMinecraftProvider.java
@@ -50,7 +50,7 @@ public abstract class ProcessedNamedMinecraftProvider<M extends MinecraftProvide
 		this.parentMinecraftProvider = parentMinecraftProvide;
 		this.jarProcessorManager = jarProcessorManager;
 
-		this.projectMappedName = parentMinecraftProvide.getMinecraftProvider().getJarPrefix() + "minecraft-project-%s-".formatted(getProject().getPath().replace(':', '@'));
+		this.projectMappedName = "minecraft-project-%s-".formatted(getProject().getPath().replace(':', '@'));
 
 		final LoomGradleExtension extension = LoomGradleExtension.get(getProject());
 		this.projectMappedDir = extension.getFiles().getRootProjectPersistentCache().toPath()