diff --git a/gio/Makefile.am b/gio/Makefile.am
index 3cdd03f84..20bcd8161 100644
--- a/gio/Makefile.am
+++ b/gio/Makefile.am
@@ -751,7 +751,7 @@ dist-hook: $(BUILT_EXTRA_DIST) ../build/win32/vs9/gio.vcproj ../build/win32/vs10
../build/win32/vs9/gio.vcproj: $(top_srcdir)/build/win32/vs9/gio.vcprojin
for F in `echo $(libgio_2_0_la_SOURCES) $(win32_actual_sources) $(win32_more_sources_for_vcproj) | tr '/' '\\'`; do \
case $$F in \
- gunix*.c|gdesktopappinfo.c|gnetworkmonitornetlink.c) ;; \
+ gunix*.c|gdesktopappinfo.c|gnetworkmonitornetlink.c|gcontenttype.c) ;; \
*.c) echo ' ' \
;; \
esac; \
@@ -762,7 +762,7 @@ dist-hook: $(BUILT_EXTRA_DIST) ../build/win32/vs9/gio.vcproj ../build/win32/vs10
../build/win32/vs10/gio.vcxproj: $(top_srcdir)/build/win32/vs10/gio.vcxprojin
for F in `echo $(libgio_2_0_la_SOURCES) $(win32_actual_sources) $(win32_more_sources_for_vcproj) | tr '/' '\\'`; do \
case $$F in \
- gunix*.c|gdesktopappinfo.c|gnetworkmonitornetlink.c) ;; \
+ gunix*.c|gdesktopappinfo.c|gnetworkmonitornetlink.c|gcontenttype.c) ;; \
*.c) echo ' ' \
;; \
esac; \
@@ -773,7 +773,7 @@ dist-hook: $(BUILT_EXTRA_DIST) ../build/win32/vs9/gio.vcproj ../build/win32/vs10
../build/win32/vs10/gio.vcxproj.filters: $(top_srcdir)/build/win32/vs10/gio.vcxproj.filtersin
for F in `echo $(libgio_2_0_la_SOURCES) $(win32_actual_sources) $(win32_more_sources_for_vcproj) | tr '/' '\\'`; do \
case $$F in \
- gunix*.c|gdesktopappinfo.c|gnetworkmonitornetlink.c) ;; \
+ gunix*.c|gdesktopappinfo.c|gnetworkmonitornetlink.c|gcontenttype.c) ;; \
*.c) echo ' Source Files' \
;; \
esac; \