fix #416: reciprocal filter broken

[flightgear.git] / src / GUI / dialog.cxx

diff --git a/src/GUI/dialog.cxx b/src/GUI/dialog.cxx
index 71d6d7279d170801612655a2113c5661884d0174..364cf5d1399d7acfa20d9232fe652d2f9c852dfc 100644 (file)
--- a/src/GUI/dialog.cxx
+++ b/src/GUI/dialog.cxx
@@ -5,6 +5,8 @@
 #endif
 
 #include <simgear/structure/SGBinding.hxx>
+#include <simgear/props/props_io.hxx>
+
 #include <Scripting/NasalSys.hxx>
 #include <Main/fg_os.hxx>