diff --git a/src/server.c b/src/server.c
index 64c1941..05f8119 100644
--- a/src/server.c
+++ b/src/server.c
@@ -6,7 +6,9 @@
 #include <unistd.h>
 #include <netdb.h>
 #include <fcntl.h>
+#if AISL_WITH_SSL == 1
 #include <openssl/ssl.h>
+#endif
 
 #ifdef __APPLE__
 #include <sys/ioctl.h>
diff --git a/src/ssl.c b/src/ssl.c
index 074d7d5..51f7feb 100644
--- a/src/ssl.c
+++ b/src/ssl.c
@@ -5,7 +5,9 @@
  * Distributed under terms of the MIT license.
  */
 
+#if AISL_WITH_SSL == 1
 #include <openssl/err.h>
+#endif
 #include "str-utils.h"
 #include "instance.h"
 #include "ssl.h"
diff --git a/src/ssl.h b/src/ssl.h
index d381fff..23f32e2 100644
--- a/src/ssl.h
+++ b/src/ssl.h
@@ -25,9 +25,9 @@
 
 #include <aisl/config.h>
 #include <aisl/types.h>
+#if AISL_WITH_SSL == 1
 #include <openssl/ssl.h>
 
-
 struct aisl_ssl {
 	char    *key_file;
 	char    *crt_file;
@@ -50,5 +50,6 @@ aisl_ssl_get_ctx(struct aisl_ssl *ssl, void *p_instance);
 void
 aisl_ssl_free(struct aisl_ssl *ssl);
 
+#endif
 
 #endif /* !AISL_SSL_H */