diff --git a/plugins/checksum/checksum.c b/plugins/checksum/checksum.c
index a4cadc19..6ace8543 100644
--- a/plugins/checksum/checksum.c
+++ b/plugins/checksum/checksum.c
@@ -20,6 +20,11 @@
  * THE SOFTWARE.
  */
 
+#ifdef __APPLE__
+#define __AVAILABILITYMACROS__
+#define DEPRECATED_IN_MAC_OS_X_VERSION_10_7_AND_LATER
+#endif
+
 #include <stdio.h>
 #include <string.h>
 #include <stdlib.h>
diff --git a/plugins/fishlim/fish.c b/plugins/fishlim/fish.c
index d4f7b118..1d2d1ce7 100644
--- a/plugins/fishlim/fish.c
+++ b/plugins/fishlim/fish.c
@@ -22,6 +22,11 @@
 
 */
 
+#ifdef __APPLE__
+#define __AVAILABILITYMACROS__
+#define DEPRECATED_IN_MAC_OS_X_VERSION_10_7_AND_LATER
+#endif
+
 #include <stdlib.h>
 #include <string.h>
 #include <openssl/blowfish.h>
diff --git a/src/common/hexchat.h b/src/common/hexchat.h
index 63d0fbed..219c4394 100644
--- a/src/common/hexchat.h
+++ b/src/common/hexchat.h
@@ -31,6 +31,13 @@
 #ifndef HEXCHAT_H
 #define HEXCHAT_H
 
+#ifdef USE_OPENSSL
+#ifdef __APPLE__
+#define __AVAILABILITYMACROS__
+#define DEPRECATED_IN_MAC_OS_X_VERSION_10_7_AND_LATER
+#endif
+#endif
+
 #include "history.h"
 
 #ifndef HAVE_SNPRINTF
diff --git a/src/common/ssl.c b/src/common/ssl.c
index 742da619..d036fb66 100644
--- a/src/common/ssl.c
+++ b/src/common/ssl.c
@@ -17,6 +17,11 @@
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  */
 
+#ifdef __APPLE__
+#define __AVAILABILITYMACROS__
+#define DEPRECATED_IN_MAC_OS_X_VERSION_10_7_AND_LATER
+#endif
+
 #include "inet.h"				  /* make it first to avoid macro redefinitions */
 #include <openssl/ssl.h>		  /* SSL_() */
 #include <openssl/err.h>		  /* ERR_() */