diff --git a/arangod/VocBase/headers.c b/arangod/VocBase/headers.c
index a3f6da6664..3d46b04d7c 100644
--- a/arangod/VocBase/headers.c
+++ b/arangod/VocBase/headers.c
@@ -42,7 +42,7 @@
 /// @brief number of headers per block
 ////////////////////////////////////////////////////////////////////////////////
 
-#define NUMBER_HEADERS_PER_BLOCK (1000000)
+#define NUMBER_HEADERS_PER_BLOCK (1000)
 
 // -----------------------------------------------------------------------------
 // --SECTION--                                                     private types