diff --git a/mesonbuild/build.py b/mesonbuild/build.py
index eb18d843e..60cd0cfcc 100644
--- a/mesonbuild/build.py
+++ b/mesonbuild/build.py
@@ -2416,7 +2416,7 @@ class CustomTarget(Target, CommandBase):
                  env: T.Optional[EnvironmentVariables] = None,
                  feed: bool = False,
                  install: bool = False,
-                 install_dir: T.Optional[T.Sequence[T.Union[str, Literal[False]]]] = None,
+                 install_dir: T.Optional[T.List[T.Union[str, Literal[False]]]] = None,
                  install_mode: T.Optional[FileMode] = None,
                  install_tag: T.Optional[T.List[T.Optional[str]]] = None,
                  absolute_paths: bool = False,
diff --git a/mesonbuild/modules/fs.py b/mesonbuild/modules/fs.py
index eb19ec4ff..7d9699588 100644
--- a/mesonbuild/modules/fs.py
+++ b/mesonbuild/modules/fs.py
@@ -302,7 +302,7 @@ class FSModule(ExtensionModule):
             [dest],
             build_by_default=True,
             install=kwargs['install'],
-            install_dir=kwargs['install_dir'],
+            install_dir=[kwargs['install_dir']],
             install_mode=kwargs['install_mode'],
             install_tag=[kwargs['install_tag']],
             backend=state.backend,
diff --git a/mesonbuild/modules/i18n.py b/mesonbuild/modules/i18n.py
index 2a7a9ade3..fcb0aa746 100644
--- a/mesonbuild/modules/i18n.py
+++ b/mesonbuild/modules/i18n.py
@@ -189,7 +189,6 @@ class I18nModule(ExtensionModule):
         if build_by_default is None:
             build_by_default = kwargs['install']
 
-        install_dir = [kwargs['install_dir']] if kwargs['install_dir'] is not None else None
         install_tag = [kwargs['install_tag']] if kwargs['install_tag'] is not None else None
 
         ct = build.CustomTarget(
@@ -202,7 +201,7 @@ class I18nModule(ExtensionModule):
             [kwargs['output']],
             build_by_default=build_by_default,
             install=kwargs['install'],
-            install_dir=install_dir,
+            install_dir=[kwargs['install_dir']] if kwargs['install_dir'] is not None else None,
             install_tag=install_tag,
         )
 
@@ -367,7 +366,6 @@ class I18nModule(ExtensionModule):
         if build_by_default is None:
             build_by_default = kwargs['install']
 
-        install_dir = [kwargs['install_dir']] if kwargs['install_dir'] is not None else None
         install_tag = [kwargs['install_tag']] if kwargs['install_tag'] is not None else None
 
         ct = build.CustomTarget(
@@ -381,7 +379,7 @@ class I18nModule(ExtensionModule):
             build_by_default=build_by_default,
             extra_depends=mo_targets,
             install=kwargs['install'],
-            install_dir=install_dir,
+            install_dir=[kwargs['install_dir']] if kwargs['install_dir'] is not None else None,
             install_tag=install_tag,
         )
 
diff --git a/test cases/common/14 configure file/meson.build b/test cases/common/14 configure file/meson.build
index 1dd673426..569dd09b7 100644
--- a/test cases/common/14 configure file/meson.build	
+++ b/test cases/common/14 configure file/meson.build	
@@ -210,7 +210,11 @@ endif
 # Test the fs replacement
 # Test copying of an empty configuration data object
 inf = 'invalid-utf8.bin.in'
-outf = fs.copyfile(inf, 'invalid-utf8-1.bin')
+outf = fs.copyfile(inf, 'invalid-utf8-1.bin',
+  install: true,
+  install_dir: get_option('datadir') / meson.project_name(),
+  install_tag: 'copyfile',
+)
 test('fs.copyfile string', check_file, args: [files(inf), outf])
 
 # Test with default outname of string
diff --git a/test cases/common/14 configure file/test.json b/test cases/common/14 configure file/test.json
index 92f7b1896..5a6ccd57a 100644
--- a/test cases/common/14 configure file/test.json	
+++ b/test cases/common/14 configure file/test.json	
@@ -3,6 +3,7 @@
     {"type": "file", "file": "usr/share/appdir/config2.h"},
     {"type": "file", "file": "usr/share/appdir/config2b.h"},
     {"type": "file", "file": "usr/share/appdireh/config2-1.h"},
-    {"type": "file", "file": "usr/share/appdirok/config2-2.h"}
+    {"type": "file", "file": "usr/share/appdirok/config2-2.h"},
+    {"type": "file", "file": "usr/share/configure file test/invalid-utf8-1.bin"}
   ]
 }