diff --git a/doxygen-1.8.20-glibc-assert.patch b/doxygen-1.8.20-glibc-assert.patch
new file mode 100644
index 0000000..ab17398
--- /dev/null
+++ b/doxygen-1.8.20-glibc-assert.patch
@@ -0,0 +1,41 @@
+commit d067baf495d0415283ce724ad32cb9a08dc17c83
+Author: Dimitri van Heesch <doxygen@gmail.com>
+Date:   Thu Sep 17 20:14:39 2020 +0200
+
+    issue #8034: doxygen crashes
+
+diff --git a/src/definition.cpp b/src/definition.cpp
+index 7874a5e4..dc968399 100644
+--- a/src/definition.cpp
++++ b/src/definition.cpp
+@@ -176,14 +176,14 @@ static bool matchExcludedSymbols(const char *name)
+       QRegExp re(substitute(pattern,"*",".*"),TRUE);
+       int pl;
+       int i = re.match(symName,0,&pl);
+-      //printf("  %d = re.match(%s) pattern=%s\n",i,symName.data(),pattern.data());
++      //printf("  %d = re.match(%s) pattern=%s pl=%d len=%d\n",i,symName.data(),pattern.data(),pl,symName.length());
+       if (i!=-1) // wildcard match
+       {
+         uint ui=(uint)i;
+         uint sl=symName.length();
+         // check if it is a whole word match
+-        if ((ui==0     || pattern.at(0)=='*'     || (!isId(symName.at(ui-1))  && !forceStart)) &&
+-            (ui+pl==sl || pattern.at(ui+pl)=='*' || (!isId(symName.at(ui+pl)) && !forceEnd))
++        if ((ui==0     || pattern.at(0)=='*'                  || (!isId(symName.at(ui-1))  && !forceStart)) &&
++            (ui+pl==sl || pattern.at(pattern.length()-1)=='*' || (!isId(symName.at(ui+pl)) && !forceEnd))
+            )
+         {
+           //printf("--> name=%s pattern=%s match at %d\n",symName.data(),pattern.data(),i);
+diff --git a/src/util.cpp b/src/util.cpp
+index 0581b5fa..34df8d7b 100644
+--- a/src/util.cpp
++++ b/src/util.cpp
+@@ -5714,7 +5714,7 @@ QCString normalizeNonTemplateArgumentsInString(
+     result += name.mid(p,i-p);
+     QCString n = name.mid(i,l);
+     bool found=FALSE;
+-    for (const Argument formArg : formalArgs)
++    for (const Argument &formArg : formalArgs)
+     {
+       if (formArg.name == n)
+       {
diff --git a/doxygen.spec b/doxygen.spec
index 78cad06..ab97e09 100644
--- a/doxygen.spec
+++ b/doxygen.spec
@@ -16,7 +16,7 @@ Summary: A documentation system for C/C++
 Name:    doxygen
 Epoch:   1
 Version: 1.8.20
-Release: 3%{?dist}
+Release: 4%{?dist}
 
 # No version is specified.
 License: GPL+
@@ -27,6 +27,7 @@ Source1: doxywizard.desktop
 # upstream patches
 Patch0: doxygen-1.8.20-enums-multiple-files.patch
 Patch1: doxygen-different-results-on-64-and-32-bit.patch
+Patch2: doxygen-1.8.20-glibc-assert.patch
 
 BuildRequires: %{_bindir}/python3
 BuildRequires: ImageMagick
@@ -304,6 +305,9 @@ desktop-file-install --dir=%{buildroot}%{_datadir}/applications %{SOURCE1}
 %endif
 
 %changelog
+* Thu Sep 17 2020 Than Ngo <than@redhat.com> - 1.8.20-4
+- Fix doxygen crash
+
 * Tue Sep 15 2020 Mattias Ellert <mattias.ellert@physics.uu.se> - 1:1.8.20-3
 - Fix doxygen producing different results on 32 and 64 bit architectures