diff --git a/build.gradle b/build.gradle
index 1ca0e16..0b7341f 100644
--- a/build.gradle
+++ b/build.gradle
@@ -47,7 +47,7 @@ dependencies {
 
 jar {
 	manifest {
-		attributes 'Implementation-MinecraftVersionInfo': version + " Build(" + build + ")"
+		attributes 'Implementation-Version': version + " Build(" + build + ")"
 	}
 }
 
diff --git a/src/main/java/net/fabricmc/loom/util/ModRemapper.java b/src/main/java/net/fabricmc/loom/util/ModRemapper.java
index 3753917..3af6389 100644
--- a/src/main/java/net/fabricmc/loom/util/ModRemapper.java
+++ b/src/main/java/net/fabricmc/loom/util/ModRemapper.java
@@ -62,7 +62,7 @@ public class ModRemapper {
 
 		Path[] classpath = classpathFiles.stream().map(File::toPath).toArray(Path[]::new);
 
-		File mixinMapFile = extension.getMinecraftProvider().jarProvider.MINECRAFT_MAPPED_JAR;
+		File mixinMapFile = extension.getMinecraftProvider().pomfProvider.MAPPINGS_MIXIN_EXPORT;
 		Path mixinMapPath = mixinMapFile.toPath();
 
 		TinyRemapper.Builder remapperBuilder = TinyRemapper.newRemapper();