diff --git a/widget/src/gtk/Makefile.in b/widget/src/gtk/Makefile.in
index f8f8490ca7d9..b7b781ea52c0 100644
--- a/widget/src/gtk/Makefile.in
+++ b/widget/src/gtk/Makefile.in
@@ -38,7 +38,6 @@ CPPSRCS		= \
 		nsComboBox.cpp \
 		nsContextMenu.cpp \
 		nsDragService.cpp \
-		nsFilePicker.cpp \
 		nsFileWidget.cpp \
 		nsFontRetrieverService.cpp \
 		nsFontSizeIterator.cpp \