diff --git a/src/ammer/stub/StubCpp.hx b/src/ammer/stub/StubCpp.hx
index b97c0fd..b892cc2 100644
--- a/src/ammer/stub/StubCpp.hx
+++ b/src/ammer/stub/StubCpp.hx
@@ -10,8 +10,9 @@ class StubCpp {
   static var lb:LineBuf;
 
   static function generateHeader():Void {
+    lb.ai("#include <stdint.h>\n");
     for (header in library.headers)
-      lb.a('#include <${header}>\n');
+      lb.ai('#include <${header}>\n');
   }
 
   static function mapTypeC(t:FFIType, name:String, closure:Bool = false):String {
diff --git a/src/ammer/stub/StubHl.hx b/src/ammer/stub/StubHl.hx
index 2685549..ebc2a6a 100644
--- a/src/ammer/stub/StubHl.hx
+++ b/src/ammer/stub/StubHl.hx
@@ -17,10 +17,11 @@ class StubHl {
   static var lb:LineBuf;
 
   static function generateHeader():Void {
-    lb.a('#define HL_NAME(n) ammer_${library.name}_ ## n\n');
-    lb.a('#include <hl.h>\n');
+    lb.ai('#define HL_NAME(n) ammer_${library.name}_ ## n\n');
+    lb.ai("#include <stdint.h>\n");
+    lb.ai("#include <hl.h>\n");
     for (header in library.headers)
-      lb.a('#include <${header}>\n');
+      lb.ai('#include <${header}>\n');
   }
 
   static function mapTypeHlFFI(t:FFIType):String {
diff --git a/src/ammer/stub/StubLua.hx b/src/ammer/stub/StubLua.hx
index a734573..7b0fae9 100644
--- a/src/ammer/stub/StubLua.hx
+++ b/src/ammer/stub/StubLua.hx
@@ -20,9 +20,10 @@ class StubLua {
     lb.ai("#ifdef __cplusplus\n");
     lb.ai("extern \"C\" {\n");
     lb.ai("#endif\n");
-    lb.ai('#include <lua.h>\n');
-    lb.ai('#include <lualib.h>\n');
-    lb.ai('#include <lauxlib.h>\n');
+    lb.ai("#include <stdint.h>\n");
+    lb.ai("#include <lua.h>\n");
+    lb.ai("#include <lualib.h>\n");
+    lb.ai("#include <lauxlib.h>\n");
     lb.ai("#ifdef __cplusplus\n");
     lb.ai("}\n");
     lb.ai("#endif\n");