diff --git a/dexlayout/dexlayout_test.cc b/dexlayout/dexlayout_test.cc
index 43c531d..f3b4c86 100644
--- a/dexlayout/dexlayout_test.cc
+++ b/dexlayout/dexlayout_test.cc
@@ -14,9 +14,9 @@
  * limitations under the License.
  */
 
+#include <sstream>
 #include <string>
 #include <vector>
-#include <sstream>
 
 #include <sys/types.h>
 #include <unistd.h>