diff --git a/src/libultra/os/setglobalintmask.c b/src/libultra/os/setglobalintmask.c
index 40b539b7f2..6b7895d6d4 100644
--- a/src/libultra/os/setglobalintmask.c
+++ b/src/libultra/os/setglobalintmask.c
@@ -1,3 +1,8 @@
 #include "global.h"
 
-#pragma GLOBAL_ASM("asm/non_matchings/boot/setglobalintmask/__osSetGlobalIntMask.s")
+void __osSetGlobalIntMask(u32 mask) {
+    register s32 prevInt = __osDisableInt();
+
+    __OSGlobalIntMask |= mask;
+    __osRestoreInt(prevInt);
+}