diff --git a/.gitignore b/.gitignore
index 7fb530a..c3cc2f2 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,5 +1,6 @@
 .DS_Store
 /.build
 /Packages
+/.swiftpm
 /*.xcodeproj
 Package.resolved
diff --git a/Tests/SplashTests/Core/SplashTestCase.swift b/Tests/SplashTests/Core/SplashTestCase.swift
index 6e38378..b1725ca 100644
--- a/Tests/SplashTests/Core/SplashTestCase.swift
+++ b/Tests/SplashTests/Core/SplashTestCase.swift
@@ -9,7 +9,7 @@ import XCTest
 
 /// Abstract base class for all Splash tests
 class SplashTestCase: XCTestCase {
-    #if !os(Linux)
+    #if os(macOS)
     func testHasLinuxVerificationTest() {
         let concreteType = type(of: self)
 
diff --git a/Tests/SplashTests/Core/XCTestManifests.swift b/Tests/SplashTests/Core/XCTestManifests.swift
index 1489aa1..30b999c 100644
--- a/Tests/SplashTests/Core/XCTestManifests.swift
+++ b/Tests/SplashTests/Core/XCTestManifests.swift
@@ -6,7 +6,7 @@
 
 import XCTest
 
-#if !os(macOS)
+#if os(Linux)
 
 public func makeLinuxTests() -> [XCTestCaseEntry] {
     return [