diff --git a/data/calendar/src/main/java/de/mm20/launcher2/calendar/CalendarRepository.kt b/data/calendar/src/main/java/de/mm20/launcher2/calendar/CalendarRepository.kt
index 9736872bf..ff12af9b3 100644
--- a/data/calendar/src/main/java/de/mm20/launcher2/calendar/CalendarRepository.kt
+++ b/data/calendar/src/main/java/de/mm20/launcher2/calendar/CalendarRepository.kt
@@ -22,10 +22,12 @@ import kotlinx.coroutines.flow.combine
 import kotlinx.coroutines.flow.combineTransform
 import kotlinx.coroutines.flow.debounce
 import kotlinx.coroutines.flow.emitAll
+import kotlinx.coroutines.flow.filterNotNull
 import kotlinx.coroutines.flow.flow
 import kotlinx.coroutines.flow.map
 import kotlinx.coroutines.flow.transform
 import kotlinx.coroutines.flow.update
+import kotlinx.coroutines.joinAll
 import kotlinx.coroutines.launch
 import kotlinx.coroutines.supervisorScope
 import kotlin.time.Duration.Companion.days
@@ -126,6 +128,7 @@ internal class CalendarRepositoryImpl(
                 excludeAllDayEvents = excludeAllDayEvents,
                 excludeCalendars = excludeCalendars,
                 providers = providers,
+                awaitAllProviders = true,
                 allowNetwork = false,
             )
             emitAll(if (debounceMillis > 0L) events.debounce(debounceMillis) else events)
@@ -139,12 +142,17 @@ internal class CalendarRepositoryImpl(
         excludeAllDayEvents: Boolean = false,
         excludeCalendars: List<String> = emptyList(),
         allowNetwork: Boolean = false,
+        awaitAllProviders: Boolean = false,
         providers: List<CalendarProvider>,
     ): Flow<ImmutableList<CalendarEvent>> = flow {
         supervisorScope {
-            val result = MutableStateFlow(persistentListOf<CalendarEvent>())
+            // Null until the first provider has reported. Emitting the (empty) accumulator right
+            // away would hand collectors an empty list before any query had run, which callers
+            // that take the first result - like the agenda in the clock widget - cannot tell
+            // apart from "no events".
+            val result = MutableStateFlow<ImmutableList<CalendarEvent>?>(null)
 
-            for (provider in providers) {
+            val jobs = providers.map { provider ->
                 launch {
                     val r = provider.search(
                         query,
@@ -158,11 +166,19 @@ internal class CalendarRepositoryImpl(
                         allowNetwork = allowNetwork,
                     )
                     result.update {
-                        (it + r).toPersistentList()
+                        ((it ?: persistentListOf()) + r).toPersistentList()
                     }
                 }
             }
-            emitAll(result)
+
+            if (awaitAllProviders) {
+                // One-shot callers must not receive a partial list, so wait until every
+                // provider has reported; if there is none, report an empty result.
+                jobs.joinAll()
+                emit(result.value ?: persistentListOf())
+            } else {
+                emitAll(result.filterNotNull())
+            }
         }
     }