diff --git a/source/funkin/native/Linux.hx b/source/funkin/native/Linux.hx
index 7238c697..0f79b306 100644
--- a/source/funkin/native/Linux.hx
+++ b/source/funkin/native/Linux.hx
@@ -1,6 +1,7 @@
 package funkin.native;
 
 #if linux
+@:cppFileCode("#include <stdio.h>")
 class Linux {
 	@:functionCode('
 		FILE *meminfo = fopen("/proc/meminfo", "r");
diff --git a/source/funkin/native/Mac.hx b/source/funkin/native/Mac.hx
index eb2b3d1f..e290ac05 100644
--- a/source/funkin/native/Mac.hx
+++ b/source/funkin/native/Mac.hx
@@ -1,6 +1,7 @@
 package funkin.native;
 
 #if mac
+@:cppFileCode("#include <sys/sysctl.h>")
 class Mac {
 	@:functionCode('
 	int mib [] = { CTL_HW, HW_MEMSIZE };