diff --git a/src/kdedistutils.py b/src/kdedistutils.py
index 13153ab..0deb5cf 100644
--- a/src/kdedistutils.py
+++ b/src/kdedistutils.py
@@ -771,6 +771,7 @@ class BuildKControlModule(Command):
             cmdlist.append("-I" + self.kde_inc_dir)
             cmdlist.append("-I" + self.kde_inc_dir + "/kde")
             cmdlist.append("-I" + self.qt_inc_dir)
+            cmdlist.append("-I/usr/include/tqt")
             cmdlist.append("-I.")
             # input
             cmdlist.append(cppfile)
@@ -1683,6 +1684,7 @@ class BuildKioslave(Command):
             cmdlist.append("-I" + self.kde_inc_dir)
             cmdlist.append("-I" + self.kde_inc_dir + "/kde")
             cmdlist.append("-I" + self.qt_inc_dir)
+            cmdlist.append("-I/usr/include/tqt")
             cmdlist.append("-I.")
             # input
             cmdlist.append(cppfile)