diff --git a/SDL2pp/Window.cc b/SDL2pp/Window.cc
index ae2b4bd..2289193 100644
--- a/SDL2pp/Window.cc
+++ b/SDL2pp/Window.cc
@@ -244,17 +244,17 @@ Window& Window::SetBordered(bool bordered) {
 
 #if SDL_VERSION_ATLEAST(2, 0, 5)
 Window& Window::SetOpacity(float opacity) {
-    if (SDL_SetWindowOpacity(window_, opacity))
+	if (SDL_SetWindowOpacity(window_, opacity))
 		throw SDL2pp::Exception("SDL_SetWindowOpacity");
-    return *this;
+	return *this;
 }
 
 float Window::GetOpacity() const {
-    float opacity;
-    if (SDL_GetWindowOpacity(window_, &opacity) == -1)
+	float opacity;
+	if (SDL_GetWindowOpacity(window_, &opacity) == -1)
 		throw SDL2pp::Exception("SDL_GetWindowOpacity");
 
-    return opacity;
+	return opacity;
 }
 #endif
 
diff --git a/tests/live_window.cc b/tests/live_window.cc
index 03985db..937323e 100644
--- a/tests/live_window.cc
+++ b/tests/live_window.cc
@@ -194,23 +194,23 @@ BEGIN_TEST(int, char*[])
 #if SDL_VERSION_ATLEAST(2, 0, 5)
 	{
 		// Opacity
-        bool has_opacity = true;
-        try {
-            window.SetOpacity(0.5f);
-        } catch (...) {
-            has_opacity = false;
-            std::cerr << "Setting window opacity is not supported on this platform" << std::endl;
-        }
+		bool has_opacity = true;
+		try {
+			window.SetOpacity(0.5f);
+		} catch (...) {
+			has_opacity = false;
+			std::cerr << "Setting window opacity is not supported on this platform" << std::endl;
+		}
 
-        if (has_opacity) {
-            EXPECT_TRUE(window.GetOpacity() > 0.49f);
-            EXPECT_TRUE(window.GetOpacity() < 0.51f);
-            EventSleep(1000);
+		if (has_opacity) {
+			EXPECT_TRUE(window.GetOpacity() > 0.49f);
+			EXPECT_TRUE(window.GetOpacity() < 0.51f);
+			EventSleep(1000);
 
-            window.SetOpacity();
-            EXPECT_TRUE(window.GetOpacity() > 0.99f);
-            EventSleep(1000);
-        }
+			window.SetOpacity();
+			EXPECT_TRUE(window.GetOpacity() > 0.99f);
+			EventSleep(1000);
+		}
 	}
 #endif