diff --git a/tests/30backend-threadpool.tests b/tests/30backend-threadpool.tests
index 0ce7ca67a..03808507a 100644
--- a/tests/30backend-threadpool.tests
+++ b/tests/30backend-threadpool.tests
@@ -48,31 +48,31 @@ TEST "Many Acquires/Releases test" many-acquire-release <<END
 err: destroying threadpool
 
 err: destroying individual pool #0
-err: number of threads in the pool=1000
+err: number of threads in the pool=50
 err: deleting thread
 err: destroying the pool mutex
 err: pool mutex destroyed
 
 err: destroying individual pool #1
-err: number of threads in the pool=1000
+err: number of threads in the pool=50
 err: deleting thread
 err: destroying the pool mutex
 err: pool mutex destroyed
 
 err: destroying individual pool #2
-err: number of threads in the pool=1000
+err: number of threads in the pool=50
 err: deleting thread
 err: destroying the pool mutex
 err: pool mutex destroyed
 
 err: destroying individual pool #3
-err: number of threads in the pool=1000
+err: number of threads in the pool=50
 err: deleting thread
 err: destroying the pool mutex
 err: pool mutex destroyed
 
 err: destroying individual pool #4
-err: number of threads in the pool=1000
+err: number of threads in the pool=50
 err: deleting thread
 err: destroying the pool mutex
 err: pool mutex destroyed
diff --git a/tests/backend/test-threadpool.c b/tests/backend/test-threadpool.c
index 4ad8e1a15..5f6615aec 100644
--- a/tests/backend/test-threadpool.c
+++ b/tests/backend/test-threadpool.c
@@ -67,7 +67,7 @@ TEST ("basic-acquire-release")
 TEST ("many-acquire-release")
 {
 
-  const int threads_per_pool_count = 1000;
+  const int threads_per_pool_count = 50;
 
   lumiera_threadpool_init();
   LumieraThread threads[threads_per_pool_count*LUMIERA_THREADCLASS_COUNT];