diff --git a/prism/defines.h b/prism/defines.h
index 26a3d8ea8e..e31429c789 100644
--- a/prism/defines.h
+++ b/prism/defines.h
@@ -34,7 +34,7 @@
  * specifying a maximum depth to which we are allowed to recurse.
  */
 #ifndef PRISM_DEPTH_MAXIMUM
-    #define PRISM_DEPTH_MAXIMUM 1000
+    #define PRISM_DEPTH_MAXIMUM 10000
 #endif
 
 /**