diff --git a/ryu/tests/s2d_test.cc b/ryu/tests/s2d_test.cc
index 01beebb..be3a549 100644
--- a/ryu/tests/s2d_test.cc
+++ b/ryu/tests/s2d_test.cc
@@ -92,8 +92,8 @@ TEST(S2dTest, Issue157) {
 }
 
 TEST(S2dTest, Issue173) {
-	// Denormal boundary
-	EXPECT_S2D(2.2250738585072012e-308, "2.2250738585072012e-308");
-	EXPECT_S2D(2.2250738585072013e-308, "2.2250738585072013e-308");
-	EXPECT_S2D(2.2250738585072014e-308, "2.2250738585072014e-308");
-}
\ No newline at end of file
+  // Denormal boundary
+  EXPECT_S2D(2.2250738585072012e-308, "2.2250738585072012e-308");
+  EXPECT_S2D(2.2250738585072013e-308, "2.2250738585072013e-308");
+  EXPECT_S2D(2.2250738585072014e-308, "2.2250738585072014e-308");
+}