diff --git a/plugins/pipes/pipesplugin.cpp b/plugins/pipes/pipesplugin.cpp
--- a/plugins/pipes/pipesplugin.cpp
+++ b/plugins/pipes/pipesplugin.cpp
@@ -353,3 +353,5 @@
         msg.setHtmlBody(body.text());
     }
 }
+
+#include "pipesplugin.moc"
diff --git a/plugins/pipes/pipespreferences.cpp b/plugins/pipes/pipespreferences.cpp
--- a/plugins/pipes/pipespreferences.cpp
+++ b/plugins/pipes/pipespreferences.cpp
@@ -108,3 +108,5 @@
     mPrefs->pipesList->resizeColumnToContents(PipesDelegate::ContentsColumn);
     changed();
 }
+
+#include "pipespreferences.moc"