diff --git a/src/backend/threads.c b/src/backend/threads.c
index d7d7a242f..773568f7b 100644
--- a/src/backend/threads.c
+++ b/src/backend/threads.c
@@ -109,7 +109,7 @@ lumiera_thread_run (enum lumiera_thread_class kind,
   // and let it really run (signal the condition var, the thread waits on it)
   self->state = LUMIERA_THREADSTATE_WAKEUP;
 
-  LUMIERA_CONDITION_SECTION (cond_sync, self->finished)
+  LUMIERA_CONDITION_SECTION (cond_sync, &self->signal)
     LUMIERA_CONDITION_SIGNAL;
 
   // NOTE: example only, add solid error handling!
diff --git a/tests/backend/test-threadpool.c b/tests/backend/test-threadpool.c
index b83920330..2acb8b861 100644
--- a/tests/backend/test-threadpool.c
+++ b/tests/backend/test-threadpool.c
@@ -48,14 +48,14 @@ TESTS_BEGIN
 
 TEST ("threadpool-basic")
 {
-  lumiera_threadpool_init(100);
+  lumiera_threadpool_init();
   lumiera_threadpool_destroy();
 }
 
 TEST ("threadpool1")
 {
   ECHO("start by initializing the threadpool");
-  lumiera_threadpool_init(100);
+  lumiera_threadpool_init();
   LumieraThread t1 =
     lumiera_threadpool_acquire_thread(LUMIERA_THREADCLASS_INTERACTIVE,
 				      "test purpose",
@@ -69,7 +69,7 @@ TEST ("threadpool1")
 TEST ("basic-acquire-release")
 {
   ECHO("start by initializing the threadpool");
-  lumiera_threadpool_init(100);
+  lumiera_threadpool_init();
   ECHO("acquiring thread 1");
   LumieraThread t1 =
     lumiera_threadpool_acquire_thread(LUMIERA_THREADCLASS_INTERACTIVE,
@@ -163,7 +163,7 @@ TEST ("no-function")
 {
   LumieraThread t;
 
-  lumiera_threadpool_init(10);
+  lumiera_threadpool_init();
 
   t = lumiera_thread_run (LUMIERA_THREADCLASS_INTERACTIVE,
 			  NULL,
@@ -184,7 +184,7 @@ TEST ("process-function")
   LumieraThread t;
   int number = 440616;
 
-  lumiera_threadpool_init(10);
+  lumiera_threadpool_init();
 
   ECHO ("the input to the function is %d", number);