diff --git a/gio/gdbus-2.0/codegen/meson.build b/gio/gdbus-2.0/codegen/meson.build
index 67ea9f2ee..a196ea1da 100644
--- a/gio/gdbus-2.0/codegen/meson.build
+++ b/gio/gdbus-2.0/codegen/meson.build
@@ -31,7 +31,7 @@ gdbus_codegen_conf = configuration_data()
 gdbus_codegen_conf.set('VERSION', glib_version)
 gdbus_codegen_conf.set('MAJOR_VERSION', major_version)
 gdbus_codegen_conf.set('MINOR_VERSION', minor_version)
-gdbus_codegen_conf.set('PYTHON', python.full_path())
+gdbus_codegen_conf.set('PYTHON', host_system != 'windows' ? python.full_path() : 'python3')
 gdbus_codegen_conf.set('DATADIR', glib_datadir)
 
 # Install gdbus-codegen executable
diff --git a/glib/meson.build b/glib/meson.build
index 5fd77590a..aaa4948d6 100644
--- a/glib/meson.build
+++ b/glib/meson.build
@@ -501,7 +501,7 @@ endif
 
 report_conf = configuration_data()
 report_conf.set('GLIB_VERSION', glib_version)
-report_conf.set('PYTHON', python.full_path())
+report_conf.set('PYTHON', host_system != 'windows' ? python.full_path() : 'python3')
 configure_file(
   input: 'gtester-report.in',
   output: 'gtester-report',
diff --git a/gobject/meson.build b/gobject/meson.build
index 748f72bc1..8e9647d94 100644
--- a/gobject/meson.build
+++ b/gobject/meson.build
@@ -85,7 +85,7 @@ python_tools = [
 
 python_tools_conf = configuration_data()
 python_tools_conf.set('VERSION', glib_version)
-python_tools_conf.set('PYTHON', python.full_path())
+python_tools_conf.set('PYTHON', host_system != 'windows' ? python.full_path() : 'python3')
 
 foreach tool: python_tools
   tool_bin = configure_file(