diff --git a/pkgs/development/libraries/qscintilla/default.nix b/pkgs/development/libraries/qscintilla/default.nix
index 33e57a682b97..a8be20b73b12 100644
--- a/pkgs/development/libraries/qscintilla/default.nix
+++ b/pkgs/development/libraries/qscintilla/default.nix
@@ -32,7 +32,8 @@ in stdenv.mkDerivation rec {
     ++ (if withQt5 then [ qmake ] else [ qmake4Hook ])
     ++ lib.optional stdenv.isDarwin fixDarwinDylibNames;
 
-  patches = lib.optional (stdenv.isDarwin && withQt5) [ xcodePatch ];
+  patches = (lib.optional (stdenv.isDarwin && withQt5) xcodePatch) ++
+            (lib.optional (!withQt5) ./fix-qt4-build.patch );
 
   # Make sure that libqscintilla2.so is available in $out/lib since it is expected
   # by some packages such as sqlitebrowser
@@ -72,6 +73,5 @@ in stdenv.mkDerivation rec {
     license = with licenses; [ gpl2 gpl3 ]; # and commercial
     maintainers = with maintainers; [ peterhoeg ];
     platforms = platforms.unix;
-    broken = !withQt5;
   };
 }
diff --git a/pkgs/development/libraries/qscintilla/fix-qt4-build.patch b/pkgs/development/libraries/qscintilla/fix-qt4-build.patch
new file mode 100644
index 000000000000..520a55b1ea21
--- /dev/null
+++ b/pkgs/development/libraries/qscintilla/fix-qt4-build.patch
@@ -0,0 +1,11 @@
+diff -ur QScintilla_gpl-2.11.2/Qt4Qt5/Qsci/qsciscintillabase.h QScintilla_gpl-2.11.2-fix/Qt4Qt5/Qsci/qsciscintillabase.h
+--- Qt4Qt5/Qsci/qsciscintillabase.h	2019-06-25 14:49:27.000000000 +0200
++++ Qt4Qt5-fix/Qsci/qsciscintillabase.h	2019-10-04 10:22:26.337474261 +0200
+@@ -27,6 +27,7 @@
+ #include <QByteArray>
+ #include <QPoint>
+ #include <QTimer>
++#include <QUrl>
+ 
+ #include <Qsci/qsciglobal.h>
+