diff --git a/host/source/inlprog.c b/host/source/inlprog.c
index 66ee95f..097d39f 100644
--- a/host/source/inlprog.c
+++ b/host/source/inlprog.c
@@ -99,7 +99,7 @@ INLOptions* parseOptions(int argc, char *argv[]) {
 	};
 
 	// FLAG_FORMAT must be kept in sync with any short options used in longopts.
-	const char *FLAG_FORMAT = "a:b:hc:d:m:p:s:v:w:x:y:z:";
+	const char *FLAG_FORMAT = "a:b:hc:d:k:m:p:s:v:w:x:y:z:";
 	int index = 0;
 	int rv = 0;
 	int kbyte = 0;
@@ -380,4 +380,4 @@ error:
 	printf("Fatal error encountered, exiting.\n");
 	cleanup(context, transfer, L);
 	return 1;
-}
\ No newline at end of file
+}