diff --git a/gio/gcontenttype.c b/gio/gcontenttype-fdo.c
similarity index 100%
rename from gio/gcontenttype.c
rename to gio/gcontenttype-fdo.c
diff --git a/gio/meson.build b/gio/meson.build
index 21c409a1d..6870dbce8 100644
--- a/gio/meson.build
+++ b/gio/meson.build
@@ -405,7 +405,7 @@ if host_system != 'windows'
     )
     application_headers += files('gosxappinfo.h')
   else
-    contenttype_sources += files('gcontenttype.c')
+    contenttype_sources += files('gcontenttype-fdo.c')
     unix_sources += files('gdesktopappinfo.c')
     gio_unix_include_headers += files('gdesktopappinfo.h')
     launch_desktop_sources = files('gio-launch-desktop.c')
diff --git a/po/POTFILES.in b/po/POTFILES.in
index 8be46bf29..bfe244769 100644
--- a/po/POTFILES.in
+++ b/po/POTFILES.in
@@ -12,7 +12,7 @@ gio/gbufferedoutputstream.c
 gio/gbytesicon.c
 gio/gcancellable.c
 gio/gcharsetconverter.c
-gio/gcontenttype.c
+gio/gcontenttype-fdo.c
 gio/gcontenttype-win32.c
 gio/gconverter.c
 gio/gconverterinputstream.c
diff --git a/tools/glib.supp b/tools/glib.supp
index bddfe603e..5e4fbd23e 100644
--- a/tools/glib.supp
+++ b/tools/glib.supp
@@ -896,7 +896,7 @@
 	fun:g_get_home_dir
 }
 
-# gcontenttype.c caches a one-time allocation global array of @global_mime_dirs.
+# gcontenttype-fdo.c caches a one-time allocation global array of @global_mime_dirs.
 {
 	content_type_mime_dirs_realloc
 	Memcheck:Leak