diff --git a/src/main/java/net/fabricmc/loom/api/ModSettings.java b/src/main/java/net/fabricmc/loom/api/ModSettings.java
index 471f7d65..0e0eff0e 100644
--- a/src/main/java/net/fabricmc/loom/api/ModSettings.java
+++ b/src/main/java/net/fabricmc/loom/api/ModSettings.java
@@ -27,6 +27,7 @@ package net.fabricmc.loom.api;
 import javax.inject.Inject;
 
 import org.gradle.api.Named;
+import org.gradle.api.file.FileCollection;
 import org.gradle.api.provider.ListProperty;
 import org.gradle.api.tasks.SourceSet;
 import org.jetbrains.annotations.ApiStatus;
@@ -41,6 +42,11 @@ public abstract class ModSettings implements Named {
 	 */
 	public abstract ListProperty<SourceSet> getModSourceSets();
 
+	/**
+	 * List of classpath directories, or jar files used to populate the `fabric.classPathGroups` Fabric Loader system property.
+	 */
+	public abstract FileCollection getModFiles();
+
 	@Inject
 	public ModSettings() {
 		getModSourceSets().finalizeValueOnRead();
diff --git a/src/main/java/net/fabricmc/loom/util/gradle/SourceSetHelper.java b/src/main/java/net/fabricmc/loom/util/gradle/SourceSetHelper.java
index 4630bde6..4950be4f 100644
--- a/src/main/java/net/fabricmc/loom/util/gradle/SourceSetHelper.java
+++ b/src/main/java/net/fabricmc/loom/util/gradle/SourceSetHelper.java
@@ -56,9 +56,14 @@ public final class SourceSetHelper {
 	}
 
 	public static List<File> getClasspath(ModSettings modSettings, Project project) {
-		return modSettings.getModSourceSets().get().stream()
+		final List<File> files = new ArrayList<>();
+
+		files.addAll(modSettings.getModSourceSets().get().stream()
 				.flatMap(sourceSet -> getClasspath(sourceSet, project).stream())
-				.toList();
+				.toList());
+		files.addAll(modSettings.getModFiles().getFiles());
+
+		return Collections.unmodifiableList(files);
 	}
 
 	public static List<File> getClasspath(SourceSet sourceSet, Project project) {