diff --git a/src/components/LeftSidebar/InvitationHandler.vue b/src/components/LeftSidebar/InvitationHandler.vue
index 06f9979b56d..8cdbb68dd87 100644
--- a/src/components/LeftSidebar/InvitationHandler.vue
+++ b/src/components/LeftSidebar/InvitationHandler.vue
@@ -28,6 +28,7 @@
 							:reference-limit="0" />
 					</div>
 					<NcButton type="tertiary"
+						class="inbox__item-button"
 						:aria-label="t('spreed', 'Decline invitation')"
 						:title="t('spreed', 'Decline invitation')"
 						:disabled="!!item.loading"
@@ -38,6 +39,7 @@
 						</template>
 					</NcButton>
 					<NcButton type="primary"
+						class="inbox__item-button"
 						:aria-label="t('spreed', 'Accept invitation')"
 						:title="t('spreed', 'Accept invitation')"
 						:disabled="!!item.loading"
@@ -239,6 +241,10 @@ export default {
 				color: var(--color-text-maxcontrast);
 			}
 		}
+
+		&-button {
+			flex-shrink: 0;
+		}
 	}
 }
 </style>