diff --git a/googletest/src/gtest_main.cc b/googletest/src/gtest_main.cc
index ee1ae52b..5b94d603 100644
--- a/googletest/src/gtest_main.cc
+++ b/googletest/src/gtest_main.cc
@@ -27,7 +27,7 @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-#include <stdio.h>
+#include <cstdio>
 #include "gtest/gtest.h"
 
 #ifdef ARDUINO