diff --git a/control/meson.build b/control/meson.build
index cbbea54..5224c55 100644
--- a/control/meson.build
+++ b/control/meson.build
@@ -45,6 +45,7 @@
         'json/triggers/timer.cpp',
     ]
 else
+    script = files('gen-fan-zone-defs.py')
     fan_zone_defs_cpp_dep = custom_target(
         'fan_zone_defs.cpp',
         input: files(
@@ -52,19 +53,18 @@
             conf.get_unquoted('FAN_ZONE_YAML_FILE'),
             conf.get_unquoted('ZONE_EVENTS_YAML_FILE'),
             conf.get_unquoted('ZONE_CONDITIONS_YAML_FILE'),
-            './gen-fan-zone-defs.py',
         ),
         command: [
             python_prog,
-            '@INPUT0@',
+            script,
             '-f',
-            '@INPUT1@',
+            '@INPUT0@',
             '-z',
-            '@INPUT2@',
+            '@INPUT1@',
             '-e',
-            '@INPUT3@',
+            '@INPUT2@',
             '-c',
-            '@INPUT4@',
+            '@INPUT3@',
             '-o',
             'control',
         ],
diff --git a/presence/meson.build b/presence/meson.build
index 11db05a..e8f5476 100644
--- a/presence/meson.build
+++ b/presence/meson.build
@@ -26,10 +26,11 @@
 
 # Only needed for YAML config
 if get_option('json-config').disabled()
+    script = files('pfpgen.py')
     generated_hpp_dep = custom_target(
         'generated.hpp',
-        input: files(conf.get_unquoted('PRESENCE_YAML_FILE'), './pfpgen.py'),
-        command: [python_prog, '@INPUT0@', 'generate-cpp', '-i', '@INPUT1@'],
+        input: files(conf.get_unquoted('PRESENCE_YAML_FILE')),
+        command: [python_prog, script, 'generate-cpp', '-i', '@INPUT0@'],
         capture: true,
         output: 'generated.hpp',
     )