diff --git a/README.md b/README.md
index e7eab06..7e75c13 100644
--- a/README.md
+++ b/README.md
@@ -60,10 +60,10 @@ This project links to the [utf8proc](https://github.com/JuliaStrings/utf8proc) l
       -u, --isupper: displays 1 if the codepoint refers to an upper-case character,
       0 otherwise
       -c, --category: determines the category of a codepoint (Letter, Number, Symbol...)
-      -n, --direction: determines the bidirectional class of a codepoint; see utf8proc.h
+      -d, --direction: determines the bidirectional class of a codepoint; see utf8proc.h
       -i, --decompositiontype: determines the decomposition type of a codepoint;
       see utf8proc.h
-      -k, --boundclass: determines the boundclass property of a codepoint; see utf8proc.h
+      -b, --boundclass: determines the boundclass property of a codepoint; see utf8proc.h
       -h, --help: show this message
     
     The input can be piped in or read from stdin. Pass in a single character for simplicity.
diff --git a/Resources/Lokalize/fr/utf8util.po b/Resources/Lokalize/fr/utf8util.po
index 6b22ca5..3a70b1c 100644
--- a/Resources/Lokalize/fr/utf8util.po
+++ b/Resources/Lokalize/fr/utf8util.po
@@ -140,11 +140,11 @@ msgid ""
 "character, 0 otherwise\n"
 "  -c, --category: determines the category of a codepoint (Letter, Number, "
 "Symbol...)\n"
-"  -n, --direction: determines the bidirectional class of a codepoint; see "
+"  -d, --direction: determines the bidirectional class of a codepoint; see "
 "utf8proc.h\n"
 "  -i, --decompositiontype: determines the decomposition type of a codepoint; "
 "see utf8proc.h\n"
-"  -k, --boundclass: determines the boundclass property of a codepoint; see "
+"  -b, --boundclass: determines the boundclass property of a codepoint; see "
 "utf8proc.h\n"
 "  -h, --help: show this message\n"
 "\n"
@@ -160,11 +160,11 @@ msgstr ""
 "majuscule d'un caractère, sinon 0\n"
 "  -c, --category: détermine la catégorie d'un point de code (Lettre, Nombre, "
 "Symbole...)\n"
-"  -n, --direction: détermine la bidirection d'un point de code; voir "
+"  -d, --direction: détermine la bidirection d'un point de code; voir "
 "utf8proc.h\n"
 "  -i, --decompositiontype: détermine le type de décomposition d'un point de "
 "code; voir utf8proc.h\n"
-"  -k, --boundclass: détermine la propriété 'boundclass' d'un point de code; "
+"  -b, --boundclass: détermine la propriété 'boundclass' d'un point de code; "
 "voir utf8proc.h\n"
 "  -h, --help: afficher ce message\n"
 "\n"
diff --git a/main.cpp b/main.cpp
index cedc57b..62448f6 100644
--- a/main.cpp
+++ b/main.cpp
@@ -114,9 +114,9 @@ void propertiesShowHelp()
     "\n\n  -l, --islower: displays 1 if the codepoint refers to a lower-case character, 0 otherwise"
     "\n  -u, --isupper: displays 1 if the codepoint refers to an upper-case character, 0 otherwise"
     "\n  -c, --category: determines the category of a codepoint (Letter, Number, Symbol...)"
-    "\n  -n, --direction: determines the bidirectional class of a codepoint; see utf8proc.h"
+    "\n  -d, --direction: determines the bidirectional class of a codepoint; see utf8proc.h"
     "\n  -i, --decompositiontype: determines the decomposition type of a codepoint; see utf8proc.h"
-    "\n  -k, --boundclass: determines the boundclass property of a codepoint; see utf8proc.h"
+    "\n  -b, --boundclass: determines the boundclass property of a codepoint; see utf8proc.h"
     "\n  -h, --help: show this message"
     "\n\nThe input can be piped in or read from stdin. Pass in a single character for simplicity.");