diff --git a/js/src/jscompartment.h b/js/src/jscompartment.h
index f270a86048e0..c15e59ba5962 100644
--- a/js/src/jscompartment.h
+++ b/js/src/jscompartment.h
@@ -259,7 +259,7 @@ struct JSCompartment
     int64_t                      lastCodeRelease;
 
     /* Pools for analysis and type information in this compartment. */
-    static const size_t LIFO_ALLOC_PRIMARY_CHUNK_SIZE = 128 * 1024;
+    static const size_t LIFO_ALLOC_PRIMARY_CHUNK_SIZE = 32 * 1024;
     js::LifoAlloc                analysisLifoAlloc;
     js::LifoAlloc                typeLifoAlloc;