diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0e16e80..15f6b1d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -18,6 +18,7 @@ a major and minor version only.
 - fixed problem if inmargin theme is used with the `usepdftitle=false` class option (see #885)
 - fixed spacing problem for right-aligned frametitles without background colour
 - fixed missing `\newline` if ragged2e is used together with beamerarticle (#900)
+- defined `\fnum@table` to avoid breaking longtable (#905)
 
 ## [v3.71]
 
diff --git a/base/beamerbaselocalstructure.sty b/base/beamerbaselocalstructure.sty
index 1ae6917..d6929b7 100644
--- a/base/beamerbaselocalstructure.sty
+++ b/base/beamerbaselocalstructure.sty
@@ -560,6 +560,7 @@
   {\par\nobreak\end{center}\nobreak}
 \newcounter{table}
 \renewcommand\thetable{\@arabic\c@table}
+\def\fnum@table{\tablename\nobreakspace\thetable}
 
 \newlength\abovecaptionskip
 \newlength\belowcaptionskip