diff --git a/src/components/Event/EventParticipationCard.vue b/src/components/Event/EventParticipationCard.vue
index 0376ee13e..f16348da1 100644
--- a/src/components/Event/EventParticipationCard.vue
+++ b/src/components/Event/EventParticipationCard.vue
@@ -124,9 +124,13 @@
               <!-- Less than 10 seats left -->
               <span class="has-text-danger" v-if="lastSeatsLeft">
                 {{
-                  t("{number} seats left", {
-                    number: seatsLeft,
-                  })
+                  t(
+                    "{number} seats left",
+                    {
+                      number: seatsLeft,
+                    },
+                    seatsLeft ?? 0
+                  )
                 }}
               </span>
               <span
diff --git a/src/i18n/en_US.json b/src/i18n/en_US.json
index 32ee34114..3b688f59b 100644
--- a/src/i18n/en_US.json
+++ b/src/i18n/en_US.json
@@ -414,7 +414,7 @@
   "Due on": "Due on",
   "Organizers": "Organizers",
   "(Masked)": "(Masked)",
-  "{available}/{capacity} available places": "No places left|{available}/{capacity} available places",
+  "{available}/{capacity} available places": "No places left|{available}/{capacity} available place left|{available}/{capacity} available places",
   "No one is participating|One person participating|{going} people participating": "No one is participating|One person participating|{going} people participating",
   "Date and time": "Date and time",
   "Location": "Location",
@@ -1218,7 +1218,7 @@
   "You will receive notifications about this group's public activity depending on %{notification_settings}.": "You will receive notifications about this group's public activity depending on %{notification_settings}.",
   "Online": "Online",
   "That you follow or of which you are a member": "That you follow or of which you are a member",
-  "{number} seats left": "{number} seats left",
+  "{number} seats left": "No seat left|One seat left|{number} seats left",
   "Published by {name}": "Published by {name}",
   "Share this post": "Share this post",
   "This post is accessible only through it's link. Be careful where you post this link.": "This post is accessible only through it's link. Be careful where you post this link.",
diff --git a/src/i18n/fr_FR.json b/src/i18n/fr_FR.json
index 043a4343e..4cf9cdf11 100644
--- a/src/i18n/fr_FR.json
+++ b/src/i18n/fr_FR.json
@@ -1562,7 +1562,7 @@
   "{'@'}{username}": "{'@'}{username}",
   "{'@'}{username} ({role})": "{'@'}{username} ({role})",
   "{approved} / {total} seats": "{approved} / {total} places",
-  "{available}/{capacity} available places": "Pas de places restantes|{available}/{capacity} places restantes|{available}/{capacity} places restantes",
+  "{available}/{capacity} available places": "Pas de places restantes|{available}/{capacity} place restante|{available}/{capacity} places restantes",
   "{count} events": "{count} événements",
   "{count} km": "{count} km",
   "{count} members": "Aucun membre|Un·e membre|{count} membres",
@@ -1608,7 +1608,7 @@
   "{number} organized events": "Aucun événement organisé|Un événement organisé|{number} événements organisés",
   "{number} participations": "Aucune participation|Une participation|{number} participations",
   "{number} posts": "Aucun billet|Un billet|{number} billets",
-  "{number} seats left": "{number} places restantes",
+  "{number} seats left": "Aucune place restante|Une place restante|{number} places restantes",
   "{old_group_name} was renamed to {group}.": "{old_group_name} a été renommé en {group}.",
   "{profileName} (suspended)": "{profileName} (suspendu·e)",
   "{profile} (by default)": "{profile} (par défault)",