diff --git a/libqpdf/qpdf/QPDFCrypto_openssl.hh b/libqpdf/qpdf/QPDFCrypto_openssl.hh
index a56e490f..58f54c3f 100644
--- a/libqpdf/qpdf/QPDFCrypto_openssl.hh
+++ b/libqpdf/qpdf/QPDFCrypto_openssl.hh
@@ -1,15 +1,15 @@
-#ifndef QPDFCRYPTO_openssl_HH
-#define QPDFCRYPTO_openssl_HH
+#ifndef QPDFCRYPTO_OPENSSL_HH
+#define QPDFCRYPTO_OPENSSL_HH
 
 #include <qpdf/QPDFCryptoImpl.hh>
 #include <string>
+#include <openssl/rand.h>
 #ifdef OPENSSL_IS_BORINGSSL
 #include <openssl/cipher.h>
 #include <openssl/digest.h>
 #else
 #include <openssl/evp.h>
 #endif
-#include <openssl/rand.h>
 
 class QPDFCrypto_openssl: public QPDFCryptoImpl
 {
@@ -50,4 +50,4 @@ class QPDFCrypto_openssl: public QPDFCryptoImpl
     size_t sha2_bits;
 };
 
-#endif // QPDFCRYPTO_openssl_HH
+#endif // QPDFCRYPTO_OPENSSL_HH