diff --git a/openssl_alloc.hpp b/openssl_alloc.hpp
index 90569bf..542db55 100644
--- a/openssl_alloc.hpp
+++ b/openssl_alloc.hpp
@@ -7,9 +7,10 @@
 
 #include <openssl/evp.h>
 
-extern "C" {
-EVP_MD_CTX* EVP_MD_CTX_new(void);
-void EVP_MD_CTX_free(EVP_MD_CTX* ctx);
+extern "C"
+{
+    EVP_MD_CTX* EVP_MD_CTX_new(void);
+    void EVP_MD_CTX_free(EVP_MD_CTX* ctx);
 }
 
 #endif // OPENSSL_VERSION_NUMBER < 0x10100000L