diff --git a/reactos/include/psdk/intrin.h b/reactos/include/psdk/intrin.h
index 3e2d72093f0..37059d8b946 100644
--- a/reactos/include/psdk/intrin.h
+++ b/reactos/include/psdk/intrin.h
@@ -75,8 +75,10 @@
 #include "intrin_ppc.h"
 #elif defined(_MIPS_)
 #include "intrin_mips.h"
-#else
+#elif defined(__x86_64__)
 /* TODO: the x64 architecture shares most of the i386 intrinsics. It should be easy to support */
+#include "intrin_x86_64.h"
+#else
 #error Unsupported architecture
 #endif
 
diff --git a/reactos/include/psdk/intrin_x86_64.h b/reactos/include/psdk/intrin_x86_64.h
new file mode 100644
index 00000000000..d3f5a12faa9
--- /dev/null
+++ b/reactos/include/psdk/intrin_x86_64.h
@@ -0,0 +1 @@
+