diff --git a/Sources/BuildSystemIntegration/SwiftPMBuildSystem.swift b/Sources/BuildSystemIntegration/SwiftPMBuildSystem.swift
index e789d1c2..b3f16c3c 100644
--- a/Sources/BuildSystemIntegration/SwiftPMBuildSystem.swift
+++ b/Sources/BuildSystemIntegration/SwiftPMBuildSystem.swift
@@ -578,6 +578,13 @@ package actor SwiftPMBuildSystem: BuiltInBuildSystem {
           data: SourceKitSourceItemData(isHeader: true).encodeToLSPAny()
         )
       }
+      sources += (swiftPMTarget.resources + swiftPMTarget.ignored + swiftPMTarget.others).map {
+        SourceItem(
+          uri: DocumentURI($0),
+          kind: $0.isDirectory ? .directory : .file,
+          generated: false,
+        )
+      }
       result.append(SourcesItem(target: target, sources: sources))
     }
     return BuildTargetSourcesResponse(items: result)
@@ -773,3 +780,9 @@ package actor SwiftPMBuildSystem: BuiltInBuildSystem {
     return TextDocumentSourceKitOptionsResponse(compilerArguments: compilerArgs)
   }
 }
+
+fileprivate extension URL {
+  var isDirectory: Bool {
+    (try? resourceValues(forKeys: [.isDirectoryKey]))?.isDirectory == true
+  }
+}