diff --git a/app/src/main/java/corewala/buran/ui/settings/SettingsFragment.kt b/app/src/main/java/corewala/buran/ui/settings/SettingsFragment.kt
index e1f00d0..0fdc132 100644
--- a/app/src/main/java/corewala/buran/ui/settings/SettingsFragment.kt
+++ b/app/src/main/java/corewala/buran/ui/settings/SettingsFragment.kt
@@ -51,14 +51,36 @@ class SettingsFragment: PreferenceFragmentCompat(), Preference.OnPreferenceChang
         val homecapsule = preferenceManager.sharedPreferences.getString(
             "home_capsule",
             Buran.DEFAULT_HOME_CAPSULE
-        )
+        )?.trim()
+
+        homePreference.summary = if(homecapsule.isNullOrEmpty()){
+            context.getString(R.string.no_home_capsule_set)
+        }else if(
+            !homecapsule.startsWith("gemini://")
+            or homecapsule.contains(" ")
+            or !homecapsule.contains(".")
+        ){
+            context.getString(R.string.not_valid_address)
+        }else{
+            homecapsule
+        }
 
-        homePreference.summary = homecapsule
         homePreference.positiveButtonText = getString(R.string.update)
         homePreference.negativeButtonText = getString(R.string.cancel)
         homePreference.title = getString(R.string.home_capsule)
         homePreference.setOnPreferenceChangeListener { _, newValue ->
-            homePreference.summary = newValue.toString()
+            val newHomecapsule = newValue.toString().trim()
+            if(newHomecapsule.isNullOrEmpty()){
+                homePreference.summary = context.getString(R.string.no_home_capsule_set)
+            }else if(
+                !newHomecapsule.startsWith("gemini://")
+                or newHomecapsule.contains(" ")
+                or !newHomecapsule.contains(".")
+            ){
+                homePreference.summary = context.getString(R.string.not_valid_address)
+            }else{
+                homePreference.summary = newHomecapsule
+            }
             true
         }
         homePreference.setOnBindEditTextListener{ editText ->
diff --git a/app/src/main/res/values-fr/strings.xml b/app/src/main/res/values-fr/strings.xml
index 78fa172..dbd1258 100644
--- a/app/src/main/res/values-fr/strings.xml
+++ b/app/src/main/res/values-fr/strings.xml
@@ -49,6 +49,8 @@
     <string name="file_saved_to_device">Fichier sauvegardé dans l\'appareil</string>
     <string name="configure_buran">Configurer Buran</string>
     <string name="home_capsule">Capsule d\'accueil</string>
+    <string name="not_valid_address">Ceci n\'est pas une adresse valide</string>
+    <string name="no_home_capsule_set">Pas de capsule d\'accueil</string>
     <string name="search_engine">Moteur de recherche</string>
     <string name="search_base">Base de recherche</string>
     <string name="update">Mettre à jour</string>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index d353bc2..df40160 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -49,6 +49,8 @@
     <string name="file_saved_to_device">File saved to device</string>
     <string name="configure_buran">Configure Buran</string>
     <string name="home_capsule">Home Capsule</string>
+    <string name="not_valid_address">This is not a valid address</string>
+    <string name="no_home_capsule_set">No home capsule set</string>
     <string name="search_engine">Search Engine</string>
     <string name="search_base">Search Base</string>
     <string name="update">Update</string>