diff --git a/octave-iso2mesh.spec b/octave-iso2mesh.spec
index 654730e..39a2fb5 100644
--- a/octave-iso2mesh.spec
+++ b/octave-iso2mesh.spec
@@ -268,6 +268,10 @@ sed -e "s|^\(CXXFLAGS = \).*|\1%{optflags} $RPM_LD_FLAGS|" \
     -e "s|-O0|%{optflags} $RPM_LD_FLAGS|" \
     -i tools/tetgen/makefile
 
+# Fix cgal 5.1 build error
+sed -e "s/Midpoint_and_length/Midpoint_placement/g" \
+    -i tools/cgalsimp2/edge_collapse_enriched_polyhedron.cpp
+
 %build
 %set_build_flags
 pushd tools
@@ -327,6 +331,9 @@ install -m 0755 -vp  bin/* %{buildroot}%{_libexecdir}/%{octpkg}/
 %doc sample
 
 %changelog
+* Fri Sep 04 2020 Qianqian Fang <fangqq@gmail.com> - 1.9.1-8
+- Fix cgal build error on F33
+
 * Sat Aug 01 2020 Fedora Release Engineering <releng@fedoraproject.org> - 1.9.1-7
 - Second attempt - Rebuilt for
   https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild