diff --git a/srcpkgs/nomacs/patches/fix-build.patch b/srcpkgs/nomacs/patches/fix-build.patch
new file mode 100644
index 0000000000..d927eaf523
--- /dev/null
+++ b/srcpkgs/nomacs/patches/fix-build.patch
@@ -0,0 +1,39 @@
+From 37805e3bc8753970127db101f4aa0c061bc5a70d Mon Sep 17 00:00:00 2001
+From: Michael Palimaka <kensington@gentoo.org>
+Date: Sun, 9 Jun 2019 19:15:28 +1000
+Subject: [PATCH] Fix build with GCC9
+
+---
+ ImageLounge/src/DkCore/DkMetaData.cpp | 2 ++
+ ImageLounge/src/DkGui/DkNoMacs.cpp    | 2 ++
+ 2 files changed, 4 insertions(+)
+
+diff --git ImageLounge/src/DkCore/DkMetaData.cpp ImageLounge/src/DkCore/DkMetaData.cpp
+index d195757e..affec7be 100644
+--- ImageLounge/src/DkCore/DkMetaData.cpp
++++ ImageLounge/src/DkCore/DkMetaData.cpp
+@@ -42,6 +42,8 @@
+ #include <QApplication>
+ #pragma warning(pop)		// no warnings from includes - end
+ 
++#include <iostream>
++
+ namespace nmc {
+ 
+ // DkMetaDataT --------------------------------------------------------------------
+diff --git ImageLounge/src/DkGui/DkNoMacs.cpp ImageLounge/src/DkGui/DkNoMacs.cpp
+index 6a412f70..bbfba233 100644
+--- ImageLounge/src/DkGui/DkNoMacs.cpp
++++ ImageLounge/src/DkGui/DkNoMacs.cpp
+@@ -96,6 +96,8 @@
+ #include <QWinTaskbarButton>
+ #endif
+ 
++#include <iostream>
++
+ namespace nmc {
+ 
+ DkNomacsOSXEventFilter::DkNomacsOSXEventFilter(QObject *parent) : QObject(parent) {
+-- 
+2.23.0
+