diff --git a/tests/020-copy-size.phpt b/tests/019-copy-size.phpt
similarity index 100%
rename from tests/020-copy-size.phpt
rename to tests/019-copy-size.phpt
diff --git a/tests/021-to-mat.phpt b/tests/020-to-mat.phpt
similarity index 100%
rename from tests/021-to-mat.phpt
rename to tests/020-to-mat.phpt