diff --git a/mangle.json b/mangle.json
index ddef611..fa06ea5 100644
--- a/mangle.json
+++ b/mangle.json
@@ -2,7 +2,16 @@
   "minify": {
     "mangle": {
       "properties": {
-        "regex": "^_[^_]"
+        "regex": "^_[^_]",
+        "reserved": [
+          "_zeros",
+          "_trim_positive",
+          "_sub",
+          "_pow_double",
+          "_alloc",
+          "_copy",
+          "_idivmod"
+        ]
       }
     }
   },
@@ -10,7 +19,8 @@
     "props": {
       "$_base": "r",
       "$_is_negative": "s",
-      "$_limbs": "l"
+      "$_limbs": "l",
+      "$_limbs_in_base": "c"
     }
   }
 }
\ No newline at end of file
diff --git a/package.json b/package.json
index a469a01..e7ba479 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@aureooms/js-integer",
   "description": "Integers for JavaScript",
-  "version": "10.0.0",
+  "version": "10.0.1",
   "license": "AGPL-3.0",
   "author": "Aurélien Ooms <aurelien.ooms@gmail.com>",
   "homepage": "https://aureooms.github.io/js-integer",