diff --git a/backends/platform/iphone/osys_events.cpp b/backends/platform/iphone/osys_events.cpp
index 22f529dfac2..c30e34dd058 100644
--- a/backends/platform/iphone/osys_events.cpp
+++ b/backends/platform/iphone/osys_events.cpp
@@ -23,6 +23,9 @@
  *
  */
 
+// Disable symbol overrides so that we can use system headers.
+#define FORBIDDEN_SYMBOL_ALLOW_ALL
+
 #include "gui/message.h"
 #include "common/translation.h"
 
diff --git a/backends/platform/iphone/osys_main.cpp b/backends/platform/iphone/osys_main.cpp
index a1fb8f0d5e3..9dc4e202c46 100644
--- a/backends/platform/iphone/osys_main.cpp
+++ b/backends/platform/iphone/osys_main.cpp
@@ -23,6 +23,9 @@
  *
  */
 
+// Disable symbol overrides so that we can use system headers.
+#define FORBIDDEN_SYMBOL_ALLOW_ALL
+
 #include <unistd.h>
 #include <pthread.h>
 
diff --git a/backends/platform/iphone/osys_sound.cpp b/backends/platform/iphone/osys_sound.cpp
index 55892580f65..cd364f57ac0 100644
--- a/backends/platform/iphone/osys_sound.cpp
+++ b/backends/platform/iphone/osys_sound.cpp
@@ -23,6 +23,9 @@
  *
  */
 
+// Disable symbol overrides so that we can use system headers.
+#define FORBIDDEN_SYMBOL_ALLOW_ALL
+
 #include "osys_main.h"
 
 void OSystem_IPHONE::AQBufferCallback(void *in, AudioQueueRef inQ, AudioQueueBufferRef outQB) {
diff --git a/backends/platform/iphone/osys_video.cpp b/backends/platform/iphone/osys_video.cpp
index d30a412a9f3..88368a0eecd 100644
--- a/backends/platform/iphone/osys_video.cpp
+++ b/backends/platform/iphone/osys_video.cpp
@@ -23,6 +23,9 @@
  *
  */
 
+// Disable symbol overrides so that we can use system headers.
+#define FORBIDDEN_SYMBOL_ALLOW_ALL
+
 #include "osys_main.h"
 
 const OSystem::GraphicsMode* OSystem_IPHONE::getSupportedGraphicsModes() const {