diff --git a/frontend/pages/organisation/plantafel.vue b/frontend/pages/organisation/plantafel.vue
index 339d13a..a25dc6a 100644
--- a/frontend/pages/organisation/plantafel.vue
+++ b/frontend/pages/organisation/plantafel.vue
@@ -990,16 +990,23 @@ async function loadPlanningBoard() {
       absenceForm.userId = profileOptions.value[0]?.value || ""
     }
 
+    const planningEvents = buildEvents({
+      rawEvents: rawEvents || [],
+      projectsById
+    })
+    const visibleProjectResourceIds = new Set(
+      planningEvents.flatMap((event) =>
+        (event.resourceIds || []).filter((resourceId) => resourceId.startsWith("PRJ-"))
+      )
+    )
+
     resources.value = buildResources({
       profiles: profiles.value,
       inventoryitems: inventoryitems.value,
-      projects: projects.value
+      projects: projects.value.filter((project) => visibleProjectResourceIds.has(`PRJ-${project.id}`))
     })
 
-    events.value = buildEvents({
-      rawEvents: rawEvents || [],
-      projectsById
-    }).concat(buildAbsenceEvents(absenceSpansByUserId))
+    events.value = planningEvents.concat(buildAbsenceEvents(absenceSpansByUserId))
   } catch (error) {
     console.error("loadPlanningBoard failed", error)
     toast.add({