diff --git a/res/field/area_data/meson.build b/res/field/area_data/meson.build
index 8751e8b98a..8f1f90504e 100644
--- a/res/field/area_data/meson.build
+++ b/res/field/area_data/meson.build
@@ -1,7 +1,14 @@
+area_data_deps = [
+    prop_model_set_narc[0],
+    map_texture_set_narc[0],
+    lighting_narc[0],
+]
+
 area_data_bin_gen = generator(
     area_data_py,
     arguments: [ '@INPUT@', '@OUTPUT@', '@EXTRA_ARGS@', ],
-    output: '@BASENAME@'
+    output: '@BASENAME@',
+    depends: [ py_consts_generators, area_data_deps ],
 )
 
 area_data_srcs = files(
@@ -84,19 +91,13 @@ area_data_srcs = files(
 
 area_data_order = files('area_data.order')
 
-area_data_deps = [ 
-    prop_model_set_narc, 
-    map_texture_set_narc, 
-    lighting_narc 
-]
-
 area_data_narc = custom_target('area_data.narc',
     output: [
         'area_data.narc',
         'area_data.naix',
     ],
     input: [
-        area_data_bin_gen.process(area_data_srcs, 
+        area_data_bin_gen.process(area_data_srcs,
             env: jsoncnv_env,
             extra_args: [
                 '--map-prop-set-naix', prop_model_set_narc[1].full_path() + '.h',
@@ -106,10 +107,7 @@ area_data_narc = custom_target('area_data.narc',
         ),
         area_data_order,
     ],
-    depends: [ 
-        py_consts_generators, 
-        area_data_deps 
-    ],
+    depends: py_consts_generators,
     command: [
         narc_exe, 'create',
         '--naix',
diff --git a/res/field/maps/texture_sets/meson.build b/res/field/maps/texture_sets/meson.build
index 8106715dcb..0bd3b7924f 100644
--- a/res/field/maps/texture_sets/meson.build
+++ b/res/field/maps/texture_sets/meson.build
@@ -1,4 +1,4 @@
-map_texture_set_gen = generator(find_program('cp'),
+map_texture_set_gen = generator(copy_exe,
     arguments: [ '@INPUT@', '@OUTPUT@', ],
     output: '@BASENAME@'
 )
diff --git a/res/meson.build b/res/meson.build
index 885a78ef86..b29ad308e0 100644
--- a/res/meson.build
+++ b/res/meson.build
@@ -66,7 +66,7 @@ lz_gen = generator(nitrogfx_exe,
     output: '@PLAINNAME@.lz',
 )
 
-copy_gen = generator(find_program('cp'),
+copy_gen = generator(copy_exe,
     arguments: [ '@INPUT@', '@OUTPUT@', ],
     output: '@PLAINNAME@'
 )
diff --git a/tools/meson.build b/tools/meson.build
index efa23d7ca0..edc8ab505a 100644
--- a/tools/meson.build
+++ b/tools/meson.build
@@ -12,6 +12,8 @@ subdir('postconf')
 subdir('scripts')
 subdir('debug')
 
+copy_exe = find_program('cp')
+
 # ARM binutils
 arm_none_eabi_gcc_exe = find_program('arm-none-eabi-gcc', native: true)
 arm_none_eabi_objcopy_exe = find_program('arm-none-eabi-objcopy', native: true)