diff --git a/base/proposal.dtx b/base/proposal.dtx
index 0684cfb..e14b71f 100644
--- a/base/proposal.dtx
+++ b/base/proposal.dtx
@@ -700,6 +700,7 @@
 %    \end{macrocode}
 % We specify the page headings. 
 %    \begin{macrocode}
+\let\prop@gen@acronym\@empty
 \newif\ifofpage\ofpagefalse
 \ifgrantagreement
 \fancyhead{}
diff --git a/base/proposal.sty b/base/proposal.sty
index aed681e..1805127 100644
--- a/base/proposal.sty
+++ b/base/proposal.sty
@@ -52,6 +52,7 @@
 \renewcommand\ednoteshape{\sl\footnotesize}
 \ifpublic\excludecomment{private}\else\includecomment{private}\fi
 \setcounter{secnumdepth}{3}
+\let\prop@gen@acronym\@empty
 \newif\ifofpage\ofpagefalse
 \ifgrantagreement
 \fancyhead{}