diff --git a/griffin/griffin.c b/griffin/griffin.c
index 1c40fb54bdcb..5cb54b6bf3c6 100644
--- a/griffin/griffin.c
+++ b/griffin/griffin.c
@@ -1261,6 +1261,20 @@ DATA RUNLOOP
 #endif
 #ifdef HAVE_PATCH
 #include "../tasks/task_patch.c"
+#ifdef HAVE_XDELTA
+#define adler32(...) xdelta_adler32(__VA_ARGS__)
+#include "../deps/xdelta3/xdelta3.c"
+#undef adler32
+#ifdef Q
+#undef Q
+#endif
+#ifdef W
+#undef W
+#endif
+#ifdef Z
+#undef Z
+#endif
+#endif
 #endif
 #include "../tasks/task_save.c"
 #include "../tasks/task_movie.c"
diff --git a/pkg/apple/BaseConfig.xcconfig b/pkg/apple/BaseConfig.xcconfig
index 4ee63c8af984..a33742741775 100644
--- a/pkg/apple/BaseConfig.xcconfig
+++ b/pkg/apple/BaseConfig.xcconfig
@@ -86,6 +86,7 @@ OTHER_CFLAGS = $(inherited) -DHAVE_UPDATE_CORE_INFO
 OTHER_CFLAGS = $(inherited) -DHAVE_VIDEO_FILTER
 OTHER_CFLAGS = $(inherited) -DHAVE_VIDEO_LAYOUT
 OTHER_CFLAGS = $(inherited) -DHAVE_VULKAN
+OTHER_CFLAGS = $(inherited) -DHAVE_XDELTA
 OTHER_CFLAGS = $(inherited) -DHAVE_XMB
 OTHER_CFLAGS = $(inherited) -DHAVE_ZLIB
 OTHER_CFLAGS = $(inherited) -DINLINE=inline
diff --git a/pkg/apple/RetroArch_iOS13.xcodeproj/project.pbxproj b/pkg/apple/RetroArch_iOS13.xcodeproj/project.pbxproj
index c762bdf503b2..62800a42cc18 100644
--- a/pkg/apple/RetroArch_iOS13.xcodeproj/project.pbxproj
+++ b/pkg/apple/RetroArch_iOS13.xcodeproj/project.pbxproj
@@ -2106,6 +2106,7 @@
 					"-DHAVE_UPDATE_ASSETS",
 					"-DHAVE_UPDATE_CORE_INFO",
 					"-DHAVE_VIDEO_FILTER",
+					"-DHAVE_XDELTA",
 					"-DHAVE_XMB",
 					"-DHAVE_ZLIB",
 					"-DINLINE=inline",
@@ -2223,6 +2224,7 @@
 					"-DHAVE_UPDATE_ASSETS",
 					"-DHAVE_UPDATE_CORE_INFO",
 					"-DHAVE_VIDEO_FILTER",
+					"-DHAVE_XDELTA",
 					"-DHAVE_XMB",
 					"-DHAVE_ZLIB",
 					"-DINLINE=inline",