diff --git a/gio/gdbus-2.0/codegen/meson.build b/gio/gdbus-2.0/codegen/meson.build
index 67ea9f2ee2521474a2a3e6bb89e0799e8b611bb1..a196ea1daf5093fea69e99e61b7f23c1e690e381 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 5fd77590a92a71596de10025ed7c68086ce4e9cd..aaa4948d667da64e039d74be5aa3f3d329594ca7 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 748f72bc14121d6cef6e0d881c2fca143fed47f0..8e9647d9487ab3f37e5d1d5091590a5a134554c0 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(