1 files changed, 5 insertions, 3 deletions
diff --git a/Master/texmf-dist/tex/latex/lwarp/lwarp-xtab.sty b/Master/texmf-dist/tex/latex/lwarp/lwarp-xtab.sty
index 0906997a27a..42393ec23a6 100644
--- a/Master/texmf-dist/tex/latex/lwarp/lwarp-xtab.sty
+++ b/Master/texmf-dist/tex/latex/lwarp/lwarp-xtab.sty
@@ -37,14 +37,16 @@
 \newcommand{\tablelasttail}[1]{%
     \long\gdef\LWRXT@lasttail{#1}%
 }
-
 \newcommand{\tablecaption}[2][]{%
-    \long\gdef\LWRXT@caption{\caption[#1]{#2}}%
+    \long\gdef\LWRXT@caption{%
+        \ifblank{#1}%
+            {\caption{#2}}%
+            {\caption[#1]{#2}}%
+    }%
 }
 
 \let\topcaption\tablecaption
 \let\bottomcaption\tablecaption
-
 \newcommand*{\LWRXT@caption}{}
 
 \newcommand*{\shrinkheight}[1]{}