diff --git a/tests/queue5.c b/tests/queue5.c
index ef303ce..a3c15d9 100644
--- a/tests/queue5.c
+++ b/tests/queue5.c
@@ -33,7 +33,7 @@
 
 
 /*   Number of queue entries */
-#define QUEUE_ENTRIES           8
+#define QUEUE_ENTRIES           4
 
 
 /* Number of test threads */
diff --git a/tests/queue9.c b/tests/queue9.c
index 09ed14f..0907928 100644
--- a/tests/queue9.c
+++ b/tests/queue9.c
@@ -38,7 +38,7 @@
 
 
 /* Test queue size */
-#define QUEUE_ENTRIES       8
+#define QUEUE_ENTRIES       4
 
 
 /* Number of test threads */