diff --git a/src/client/data/countries.json b/src/client/data/countries.json
index 173dd71dc..19289876f 100644
--- a/src/client/data/countries.json
+++ b/src/client/data/countries.json
@@ -300,7 +300,7 @@
     "name": "British Indian Ocean Territory"
   },
   {
-    "code": "Brittany",
+    "code": "brittany",
     "continent": "Europe",
     "name": "Brittany"
   },
@@ -473,7 +473,7 @@
     "name": "Comoros"
   },
   {
-    "code": "Communist flag",
+    "code": "communist flag",
     "name": "Communist Flag"
   },
   {
@@ -755,7 +755,7 @@
     "name": "Franks"
   },
   {
-    "code": "French foreign legion",
+    "code": "french foreign legion",
     "name": "French Foreign Legion"
   },
   {
@@ -1165,7 +1165,7 @@
     "name": "Liberia"
   },
   {
-    "code": "liberalism_flag",
+    "code": "Liberalism_flag",
     "name": "Liberalism Flag"
   },
   {
@@ -1208,7 +1208,7 @@
     "name": "Luxembourg"
   },
   {
-    "code": "Lydia",
+    "code": "lydia",
     "continent": "Asia",
     "name": "Lydia"
   },
@@ -1258,7 +1258,7 @@
     "name": "Malta"
   },
   {
-    "code": "Māori flag",
+    "code": "Māori Flag",
     "continent": "Oceania",
     "name": "Māori Flag"
   },
@@ -1491,7 +1491,7 @@
     "name": "Normandy"
   },
   {
-    "code": "North karelia",
+    "code": "North Karelia",
     "continent": "Europe",
     "name": "North Karelia"
   },