diff --git a/unix.go b/unix.go
index 2169c3a..e2d7387 100644
--- a/unix.go
+++ b/unix.go
@@ -8,9 +8,11 @@ import (
 	"unsafe"
 )
 
-func Hide(position uint) {
-	pwdstr := (*[2]uintptr)(unsafe.Pointer(&os.Args[position]))
-	for i := 0; i < len(os.Args[3]); i++ {
-		*(*uint8)(unsafe.Pointer(uintptr(unsafe.Pointer(pwdstr)) + uintptr(i))) = '*'
+func Hide(position int) {
+	if position > 0 && position < len(os.Args) {
+		pwdstr := (*[2]uintptr)(unsafe.Pointer(&os.Args[position]))
+		for i := 0; i < len(os.Args[position]); i++ {
+			*(*uint8)(unsafe.Pointer(uintptr(unsafe.Pointer(pwdstr)) + uintptr(i))) = '*'
+		}
 	}
 }
diff --git a/win.go b/win.go
index 5b8fbe1..897317e 100644
--- a/win.go
+++ b/win.go
@@ -91,9 +91,9 @@ func utf16PtrToSlice(p *uint16) []uint16 {
 	return s
 }
 
-func Hide(position uint) {
-	if position < uint(len(os.Args)) {
+func Hide(position int) {
+	if position > 0 && position < len(os.Args) {
 		cmd := utf16PtrToSlice(syscall.GetCommandLine())
-		eraseCommandLine(&cmd, position)
+		eraseCommandLine(&cmd, uint(position))
 	}
 }