diff --git a/compat/fsmonitor/fsm-settings-darwin.c b/compat/fsmonitor/fsm-settings-unix.c
similarity index 100%
rename from compat/fsmonitor/fsm-settings-darwin.c
rename to compat/fsmonitor/fsm-settings-unix.c
diff --git a/contrib/buildsystems/CMakeLists.txt b/contrib/buildsystems/CMakeLists.txt
index 6197d5729c..d613809e26 100644
--- a/contrib/buildsystems/CMakeLists.txt
+++ b/contrib/buildsystems/CMakeLists.txt
@@ -306,7 +306,7 @@ if(SUPPORTS_SIMPLE_IPC)
 		list(APPEND compat_SOURCES compat/fsmonitor/fsm-path-utils-${FSMONITOR_DAEMON_BACKEND}.c)
 
 		add_compile_definitions(HAVE_FSMONITOR_OS_SETTINGS)
-		list(APPEND compat_SOURCES compat/fsmonitor/fsm-settings-${FSMONITOR_DAEMON_BACKEND}.c)
+		list(APPEND compat_SOURCES compat/fsmonitor/fsm-settings-${FSMONITOR_OS_SETTINGS}.c)
 	endif()
 endif()
 
diff --git a/meson.build b/meson.build
index 86a68365a9..4f0c0a33b8 100644
--- a/meson.build
+++ b/meson.build
@@ -1338,7 +1338,7 @@ if fsmonitor_backend != ''
     'compat/fsmonitor/fsm-ipc-' + fsmonitor_os + '.c',
     'compat/fsmonitor/fsm-listen-' + fsmonitor_backend + '.c',
     'compat/fsmonitor/fsm-path-utils-' + fsmonitor_backend + '.c',
-    'compat/fsmonitor/fsm-settings-' + fsmonitor_backend + '.c',
+    'compat/fsmonitor/fsm-settings-' + fsmonitor_os + '.c',
   ]
 endif
 build_options_config.set_quoted('FSMONITOR_DAEMON_BACKEND', fsmonitor_backend)