diff --git a/luamml-patches-amsmath.sty b/luamml-patches-amsmath.sty
index 733b71b..f3bfc38 100644
--- a/luamml-patches-amsmath.sty
+++ b/luamml-patches-amsmath.sty
@@ -264,7 +264,7 @@
     \restorealignstate@
     \egroup
     \nonumber
-    \ifnum0=‘{\fi\iffalse}\fi
+    \ifnum0=`{\fi\iffalse}\fi
   \else
     $$
   \fi
diff --git a/luamml-patches-kernel.sty b/luamml-patches-kernel.sty
index 1c1540d..49dc215 100644
--- a/luamml-patches-kernel.sty
+++ b/luamml-patches-kernel.sty
@@ -57,3 +57,7 @@
   \__luamml_kernel_define_character:Nnn \longleftrightarrow {3} {27f7}
   \__luamml_kernel_define_character:Nnn \longmapsto {4} {27fc}
 }
+
+\IfFileLoadedT {latex-lab-math.ltx} {
+  \RequirePackage{luamml-patches-lab-math}
+}
diff --git a/luamml-patches-lab-math.sty b/luamml-patches-lab-math.sty
new file mode 100644
index 0000000..b3cc27e
--- /dev/null
+++ b/luamml-patches-lab-math.sty
@@ -0,0 +1,30 @@
+\ProvidesExplPackage {luamml-patches-lab-math} {2021-05-30} {0.0.1-alpha}
+  {Feel free to add a description here}
+
+\AddToHook{begindocument} {
+  \cs_set:Npn \common@align@ending {
+    \math@cr
+    \black@ \totwidth@
+    \__luamml_amsmath_finalize_table:n {align}
+    \egroup
+    \ifingather@
+      \restorealignstate@
+      \egroup
+      \nonumber
+      \ifnum0=`{\fi\iffalse}\fi
+    \else
+      $$
+    \fi
+    \ignorespacesafterend
+  }
+  \show \__math_env_gather_end:
+  \show \endgather
+  % \cs_set:Npn \endgather {
+  %       \math@cr
+  %       \black@ \totwidth@
+  %       \__luamml_amsmath_finalize_table:n {gather}
+  %   \egroup
+  %   $$
+  %   \ignorespacesafterend
+  % }
+}