diff --git a/src/getopt.rs b/src/getopt.rs
index 62696e0..dca53e0 100644
--- a/src/getopt.rs
+++ b/src/getopt.rs
@@ -34,10 +34,16 @@ extern "C" {
 
 pub struct Opt {
 	pub arg: Option<String>,
-	pub ind: *mut i32,
+	ind: *mut i32,
 	pub opt: String,
 }
 
+impl Opt {
+	pub fn index(&self) -> usize { unsafe { *self.ind as usize } }
+
+	pub fn set_index(&self, ind: i32) { unsafe { *self.ind = ind; } }
+}
+
 pub enum OptError {
 	MissingArg(String),
 	UnknownOpt(String),
@@ -82,12 +88,12 @@ impl GetOpt for Vec<String> {
 				 *
 				 * Otherwise, getopt() shall return -1 when all command line
 				 * options are parsed. */
-					58 => { /* numerical ASCII value for ':' */
-						Some(Err(OptError::MissingArg(optopt.to_string())))
-					},
-					63 => { /* numerical ASCII value for '?' */
-						Some(Err(OptError::UnknownOpt(optopt.to_string())))
-					},
+				58 => { /* numerical ASCII value for ':' */
+					Some(Err(OptError::MissingArg(optopt.to_string())))
+				},
+				63 => { /* numerical ASCII value for '?' */
+					Some(Err(OptError::UnknownOpt(optopt.to_string())))
+				},
 				/* From getopt(3p):
 				 *
 				 * If, when getopt() is called:
@@ -121,9 +127,8 @@ impl GetOpt for Vec<String> {
 						 * characters, it is unspecified how getopt()
 						 * determines which options have already been processed.
 						 *
-						 * This API is unsafe and can be utilized by
-						 * dereferencing the ind field before reading to and
-						 * writing from the optind memory. */
+						 * This API is can be utilized with the index() and
+						 * set_index() methods implemented for Opt. */
 						ind: std::ptr::addr_of_mut!(optind),
 						opt: opt.to_string(), /* option itself */
 					}))