diff --git a/build_info.json b/build_info.json
index 6a90c33..838eed4 100644
--- a/build_info.json
+++ b/build_info.json
@@ -1,8 +1,8 @@
 {
     "build_time": "",
     "source files": {
-        "version": "v2.2.2-15",
-        "commit": "7acfb67e7a483ac276cded454a8a088945800748",
+        "version": "v2.2.2-19",
+        "commit": "7116da1450351cf44b1c93f3bcb0b2875de25ba6",
         "dirty": false
     },
     "pytex": {
@@ -144,9 +144,9 @@
         {
             "name": "mkessler-mathop.sty",
             "source file": "mathop.pysty",
-            "build time": "2021/10/25 17:42",
-            "source version": "v2.2.2-15",
-            "source commit hash": "7acfb67e7a483ac276cded454a8a088945800748",
+            "build time": "2021/10/25 21:57",
+            "source version": "v2.2.2-19",
+            "source commit hash": "7116da1450351cf44b1c93f3bcb0b2875de25ba6",
             "pytex version": "v1.0.0-18",
             "pytex commit hash": "126d420b7a6ed2d4b2a42d534ab2e12344869643",
             "dirty": false
diff --git a/math/mkessler-mathop.sty b/math/mkessler-mathop.sty
index 81c0123..846d3ff 100644
--- a/math/mkessler-mathop.sty
+++ b/math/mkessler-mathop.sty
@@ -27,7 +27,7 @@
 % 
 % Build details:
 %   PyTeX version: v1.0.0-18 (commit 126d420)
-%   Source code version: v2.2.2-15 (commit 7acfb67)
+%   Source code version: v2.2.2-19 (commit 7116da1)
 % 
 % This LaTeX package is free software and distributed under the MIT License. You
 % may use it freely for your purposes. The latest version of the package can be
@@ -251,3 +251,10 @@
   \vphantom{\big|} % pretend it's a little taller at normal size
   \right|_{#2} % this is the delimiter
 }}
+
+
+\newcommand\directlimit{\varinjlim}
+\newcommand\inverselimit{\varprojlim}
+
+\DeclareMathOperator*{\freeproduct}{\raisebox{-0.5ex}{\scalebox{2}{$\ast$}}}
+