diff --git a/testsuite/repro-build-test.py b/testsuite/repro-build-test.py
index 6234a8d7..f8fbd63e 100755
--- a/testsuite/repro-build-test.py
+++ b/testsuite/repro-build-test.py
@@ -57,6 +57,7 @@ class ReproBuild(CIBuilder):
             source_date_epoch=source_date_epoch, use_apt_snapshot=True,
             lines=[
                 f'IMAGE_FSTYPES = "{image_fstype}"',
+                'IMAGE_PREINSTALL += "python3"',
             ]
         )
         self.bitbake(target)