diff -r 27985062cd2c -r e1a85fbf68f9 libidav/crypto.c
--- a/libidav/crypto.c	Tue Aug 13 20:23:23 2019 +0200
+++ b/libidav/crypto.c	Wed Aug 14 21:13:28 2019 +0200
@@ -38,7 +38,7 @@
 /* -------------------- OpenSSL Crypto Functions -------------------- */
 #ifdef DAV_USE_OPENSSL
 
-#if OPENSSL_VERSION_NUMBER < 10000000
+#if OPENSSL_VERSION_NUMBER < 0x10000000L
 
 static EVP_CIPHER_CTX* create_evp_cipher_ctx() {
     EVP_CIPHER_CTX *ctx = malloc(sizeof(EVP_CIPHER_CTX));