diff --git a/src/Gui/Makefile.am b/src/Gui/Makefile.am
index 1cf4fcc16..c714f4913 100644
--- a/src/Gui/Makefile.am
+++ b/src/Gui/Makefile.am
@@ -48,6 +48,7 @@ BUILT_SOURCES=\
 		moc_HelpView.cpp \
 		moc_InputVector.cpp \
 		moc_MainWindow.cpp \
+		moc_ManualAlignment.cpp \
 		moc_NetworkRetriever.cpp \
 		moc_OnlineDocumentation.cpp \
 		moc_Placement.cpp \
@@ -282,6 +283,8 @@ libFreeCADGui_la_SOURCES=\
 		Placement.h \
 		Macro.cpp \
 		MainWindow.cpp \
+		ManualAlignment.cpp \
+		ManualAlignment.h \
 		MDIView.cpp \
 		MenuManager.cpp \
 		MergeDocuments.cpp \