diff --git a/src/locale_file_parser.rs b/src/locale_file_parser.rs
index 1480caa..3054aeb 100644
--- a/src/locale_file_parser.rs
+++ b/src/locale_file_parser.rs
@@ -16,6 +16,8 @@ pub(crate) struct Translations {
     pub(crate) es: Option<String>,
     /// Chinese - Taiwan
     pub(crate) zh_tw: Option<String>,
+    /// French
+    pub(crate) fr: Option<String>,
 }
 
 impl Translations {
@@ -25,6 +27,7 @@ impl Translations {
             en: None,
             es: None,
             zh_tw: None,
+            fr: None,
         }
     }
 
@@ -55,8 +58,15 @@ impl Translations {
                         _ => panic!("Error: translation should be string"),
                     })
                 };
+                let fr = {
+                    let opt_en_yaml = translation_mapping.remove("fr");
+                    opt_en_yaml.map(|opt_yaml| match opt_yaml {
+                        Yaml::String(str) => str,
+                        _ => panic!("Error: translation should be string"),
+                    })
+                };
 
-                Self { en, es, zh_tw }
+                Self { en, es, zh_tw, fr }
             }
 
             _ => panic!("Error: invalid format for translation"),
@@ -151,7 +161,8 @@ _version: 2
 "with_en":
   en: "with_en"
   es: "with_es"
-  zh_TW: "with_zh_TW""#;
+  zh_TW: "with_zh_TW"
+  fr: "with_fr""#;
         let yaml: Yaml = serde_yaml_ng::from_str(yaml_str).unwrap();
         let parsed = LocalizedTexts::new(yaml);
 
@@ -164,6 +175,7 @@ _version: 2
                         en: Some("with_en".to_string()),
                         es: Some("with_es".to_string()),
                         zh_tw: Some("with_zh_TW".to_string()),
+                        fr: Some("with_fr".to_string()),
                     },
                 ),
             ]),
diff --git a/src/rules/key_and_eng_matches.rs b/src/rules/key_and_eng_matches.rs
index de3e571..4c3f467 100644
--- a/src/rules/key_and_eng_matches.rs
+++ b/src/rules/key_and_eng_matches.rs
@@ -305,6 +305,7 @@ mod tests {
                     en: None,
                     es: Some("ff".into()),
                     zh_tw: Some("bar".into()),
+                    fr: Some("bar".into()),
                 },
             )]),
         };
@@ -330,6 +331,7 @@ mod tests {
                     en: Some("buz".into()),
                     es: Some("buz".into()),
                     zh_tw: Some("buz".into()),
+                    fr: Some("buz".into()),
                 },
             )]),
         };
@@ -352,6 +354,7 @@ mod tests {
                     en: Some("Restarting {app}".into()),
                     es: Some("Restarting {app}".into()),
                     zh_tw: Some("Restarting {app}".into()),
+                    fr: Some("Restarting {app}".into()),
                 },
             )]),
         };
@@ -374,6 +377,7 @@ mod tests {
                     en: Some("Restarting %{app}".into()),
                     es: Some("Restarting %{app}".into()),
                     zh_tw: Some("Restarting %{app}".into()),
+                    fr: Some("Restarting %{app}".into()),
                 },
             )]),
         };
@@ -390,6 +394,7 @@ mod tests {
                     en: Some("Restarting".into()),
                     es: Some("Restarting".into()),
                     zh_tw: Some("Restarting".into()),
+                    fr: Some("Restarting".into()),
                 },
             )]),
         };
diff --git a/src/rules/missing_translations.rs b/src/rules/missing_translations.rs
index 22dddd0..993967f 100644
--- a/src/rules/missing_translations.rs
+++ b/src/rules/missing_translations.rs
@@ -13,6 +13,7 @@ bitflags! {
         const En   = 0b_0000_0001;
         const Es   = 0b_0000_0010;
         const ZhTW = 0b_0000_0100;
+        const Fr   = 0b_0000_1000;
     }
 }
 
@@ -31,6 +32,9 @@ impl MissingLanguages {
             if lang == MissingLanguages::ZhTW {
                 str.push_str(", zh_TW");
             }
+            if lang == MissingLanguages::Fr {
+                str.push_str(", fr");
+            }
         }
         str.push(']');
 
@@ -60,6 +64,9 @@ impl Rule for MissingTranslations {
             if translations.zh_tw.is_none() {
                 missing_langs.insert(MissingLanguages::ZhTW);
             }
+            if translations.fr.is_none() {
+                missing_langs.insert(MissingLanguages::Fr);
+            }
 
             if !missing_langs.is_empty() {
                 Self::report_error(key.clone(), Some(missing_langs.error_msg()), errors);
@@ -84,6 +91,7 @@ mod tests {
                         en: None,
                         es: None,
                         zh_tw: Some("c".into()),
+                        fr: Some("c".into()),
                     },
                 ),
                 (
@@ -92,6 +100,7 @@ mod tests {
                         en: None,
                         es: Some("c".into()),
                         zh_tw: None,
+                        fr: None,
                     },
                 ),
                 (
@@ -100,6 +109,7 @@ mod tests {
                         en: Some("Restarting %{ba}".into()),
                         es: Some("Restarting %{ba}".into()),
                         zh_tw: Some("Restarting %{ba}".into()),
+                        fr: Some("Restarting %{ba}".into()),
                     },
                 ),
             ]),
@@ -116,7 +126,7 @@ mod tests {
                 ),
                 (
                     "Restarting {topgrade}".to_string(),
-                    Some("Missing translations for [en, zh_TW]".into()),
+                    Some("Missing translations for [en, zh_TW, fr]".into()),
                 ),
             ],
         )]);
@@ -133,6 +143,7 @@ mod tests {
                         en: Some("whatever".into()),
                         es: Some("whatever".into()),
                         zh_tw: Some("whatever".into()),
+                        fr: Some("whatever".into()),
                     },
                 ),
                 (
@@ -141,6 +152,7 @@ mod tests {
                         en: Some("wahtever".into()),
                         es: Some("wahtever".into()),
                         zh_tw: Some("wahtever".into()),
+                        fr: Some("whatever".into()),
                     },
                 ),
                 (
@@ -149,6 +161,7 @@ mod tests {
                         en: Some("Restarting %{ba}".into()),
                         es: Some("Restarting %{ba}".into()),
                         zh_tw: Some("Restarting %{ba}".into()),
+                        fr: Some("whatever".into()),
                     },
                 ),
             ]),
diff --git a/src/rules/use_of_keys_do_not_exist.rs b/src/rules/use_of_keys_do_not_exist.rs
index 8dbe1fd..6e43f0d 100644
--- a/src/rules/use_of_keys_do_not_exist.rs
+++ b/src/rules/use_of_keys_do_not_exist.rs
@@ -71,6 +71,7 @@ mod tests {
                     en: Some("Restarting".into()),
                     es: Some("Restarting".into()),
                     zh_tw: Some("Restarting".into()),
+                    fr: Some("Restarting".into()),
                 },
             )]),
         };