diff --git a/src/main/java/net/fabricmc/loom/AbstractPlugin.java b/src/main/java/net/fabricmc/loom/AbstractPlugin.java
index 2a7dd05..9134a02 100644
--- a/src/main/java/net/fabricmc/loom/AbstractPlugin.java
+++ b/src/main/java/net/fabricmc/loom/AbstractPlugin.java
@@ -126,6 +126,8 @@ public class AbstractPlugin implements Plugin<Project> {
 
 		extendsFrom("compileClasspath", Constants.MINECRAFT_NAMED);
 		extendsFrom("runtimeClasspath", Constants.MINECRAFT_NAMED);
+		extendsFrom("testCompileClasspath", Constants.MINECRAFT_NAMED);
+		extendsFrom("testRuntimeClasspath", Constants.MINECRAFT_NAMED);
 
 		extendsFrom(Constants.MINECRAFT_NAMED, Constants.MINECRAFT_DEPENDENCIES);