diff --git a/psgs.cpp b/psgs.cpp
index 1980509ef..96e2ff0cc 100644
--- a/psgs.cpp
+++ b/psgs.cpp
@@ -166,3 +166,4 @@ QPixmap *ghostscript_interface::graphics(int page) {
   DiskCache->insert(page, GfxFile);
   return ReturnCopy;
 }
+#include "psgs.moc"