diff --git a/bin/fixqt4headers.pl b/bin/fixqt4headers.pl
index 966681fad50..3c7dd867ba0 100755
--- a/bin/fixqt4headers.pl
+++ b/bin/fixqt4headers.pl
@@ -140,6 +140,7 @@ sub findQtHeaders
 
 die "This script requires the QTDIR environment variable pointing to Qt 5\n" unless $qtdir;
 
+findQtHeaders('QtCore', $qtdir);
 findQtHeaders('QtWidgets', $qtdir);
 findQtHeaders('QtPrintSupport', $qtdir);