SSL: fixed typo introduced in 8e335c2ac447.

diff --git a/external/njs_openssl.h b/external/njs_openssl.h
index dd2f34c661f732e65c037faf1b3df33f81a6c410..002c6a2e8420991d1dae0efdbe2d81db087aac96 100644 (file)
--- a/external/njs_openssl.h
+++ b/external/njs_openssl.h
@@ -21,7 +21,7 @@
 #include <openssl/rand.h>
 #include <openssl/crypto.h>
 
-#if EVP_PKEY_HKDF
+#ifdef EVP_PKEY_HKDF
 #include <openssl/kdf.h>
 #endif