diff --git a/doxygen-1.8.15-multilib.patch b/doxygen-1.8.15-multilib.patch
new file mode 100644
index 0000000..329ce72
--- /dev/null
+++ b/doxygen-1.8.15-multilib.patch
@@ -0,0 +1,20 @@
+diff -up doxygen-1.8.15/src/dirdef.cpp.me doxygen-1.8.15/src/dirdef.cpp
+--- doxygen-1.8.15/src/dirdef.cpp.me	2019-02-14 22:57:29.709491363 +0100
++++ doxygen-1.8.15/src/dirdef.cpp	2019-02-14 22:59:10.922169840 +0100
+@@ -936,14 +936,14 @@ void buildDirectories()
+     for (;(fd=fni.current());++fni)
+     {
+       //printf("buildDirectories %s\n",fd->name().data());
+-      if (fd->getReference().isEmpty())
++      if (fd->getReference().isEmpty() && !fd->isDocumentationFile())
+       {
+         DirDef *dir;
+         if ((dir=Doxygen::directories->find(fd->getPath()))==0) // new directory
+         {
+           dir = DirDef::mergeDirectoryInTree(fd->getPath());
+         }
+-        if (dir && !fd->isDocumentationFile()) dir->addFile(fd);
++        if (dir) dir->addFile(fd);
+       }
+       else
+       {
diff --git a/doxygen.spec b/doxygen.spec
index dee7630..bdf6716 100644
--- a/doxygen.spec
+++ b/doxygen.spec
@@ -8,7 +8,7 @@ Summary: A documentation system for C/C++
 Name:    doxygen
 Epoch:   1
 Version: 1.8.15
-Release: 5%{?dist}
+Release: 6%{?dist}
 
 # No version is specified.
 License: GPL+
@@ -23,6 +23,7 @@ Patch0: doxygen-1.8.15-handle_empty_TOC_in_XML_output.patch
 Patch1: doxygen-1.8.15-test_for_XML_output_with_an_empty_TOC.patch
 Patch2: doxygen-1.8.15-inconsistent_whitespace_removal_for_operators.patch
 Patch3: doxygen-1.8.15-crash.patch
+Patch4: doxygen-1.8.15-multilib.patch
 
 BuildRequires: gcc-c++ gcc
 BuildRequires: perl-interpreter
@@ -187,6 +188,9 @@ make tests -C %{_target_platform}
 %endif
 
 %changelog
+* Thu Feb 14 2019 Than Ngo <than@redhat.com> - 1:1.8.15-6
+- fixed bz#1677000, fixed multilib issue
+
 * Tue Feb 12 2019 Than Ngo <than@redhat.com> - 1:1.8.15-5
 - fixed bz#1675288, doxygen 1.8.15 segfault