diff --git a/lib/emscripten/src/syscalls/windows.rs b/lib/emscripten/src/syscalls/windows.rs
index a04a978d2..f6a867356 100644
--- a/lib/emscripten/src/syscalls/windows.rs
+++ b/lib/emscripten/src/syscalls/windows.rs
@@ -135,7 +135,7 @@ pub fn ___syscall85(_ctx: &mut Ctx, _which: c_int, _varargs: VarArgs) -> c_int {
 }
 
 /// getpgid
-pub fn ___syscall132(ctx: &mut Ctx, _which: c_int, mut varargs: VarArgs) -> c_int {
+pub fn ___syscall132(_ctx: &mut Ctx, _which: c_int, mut _varargs: VarArgs) -> c_int {
     debug!("emscripten::___syscall132 (getpgid)");
     -1
 }
@@ -292,7 +292,7 @@ pub fn ___syscall220(_ctx: &mut Ctx, _one: i32, _two: i32) -> i32 {
 }
 
 // fcntl64
-pub fn ___syscall221(ctx: &mut Ctx, _which: c_int, mut varargs: VarArgs) -> c_int {
+pub fn ___syscall221(_ctx: &mut Ctx, _which: c_int, mut _varargs: VarArgs) -> c_int {
     debug!("emscripten::___syscall221 (fcntl64) {}", _which);
     -1
 }