diff --git a/tests/arxiv.t/run.t b/tests/arxiv.t/run.t
index 428dfcc..9f9c511 100644
--- a/tests/arxiv.t/run.t
+++ b/tests/arxiv.t/run.t
@@ -2,7 +2,7 @@ Arxiv entry (with DOI entry) executed with prefix
   $ doi2bib arXiv:1609.01724
   @article{Prandi_2018,
   	doi = {10.4171/jst/226},
-  	url = {https://doi.org/10.4171%2Fjst%2F226},
+  	url = {https://doi.org/10.4171/jst/226},
   	year = 2018,
   	month = {jul},
   	publisher = {European Mathematical Society - {EMS} - Publishing House {GmbH}},
@@ -17,7 +17,7 @@ Arxiv Entry (with DOI entry) executed without prefix
   $ doi2bib 1902.00436
   @article{Vermeeren_2019,
   	doi = {10.1088/1751-8121/ab4767},
-  	url = {https://doi.org/10.1088%2F1751-8121%2Fab4767},
+  	url = {https://doi.org/10.1088/1751-8121/ab4767},
   	year = 2019,
   	month = {oct},
   	publisher = {{IOP} Publishing},
diff --git a/tests/doi.t/run.t b/tests/doi.t/run.t
index 2bc9006..e9b6236 100644
--- a/tests/doi.t/run.t
+++ b/tests/doi.t/run.t
@@ -2,7 +2,7 @@ DOI entry executed without prefix
   $ doi2bib 10.1007/s10569-019-9946-9
   @article{Bravetti_2020,
   	doi = {10.1007/s10569-019-9946-9},
-  	url = {https://doi.org/10.1007%2Fs10569-019-9946-9},
+  	url = {https://doi.org/10.1007/s10569-019-9946-9},
   	year = 2020,
   	month = {jan},
   	publisher = {Springer Science and Business Media {LLC}},
@@ -16,7 +16,7 @@ DOI entry executed with prefix
   $ doi2bib doi:10.4171/JST/226
   @article{Prandi_2018,
   	doi = {10.4171/jst/226},
-  	url = {https://doi.org/10.4171%2Fjst%2F226},
+  	url = {https://doi.org/10.4171/jst/226},
   	year = 2018,
   	month = {jul},
   	publisher = {European Mathematical Society - {EMS} - Publishing House {GmbH}},
@@ -27,3 +27,17 @@ DOI entry executed with prefix
   	title = {Quantum confinement on non-complete Riemannian manifolds},
   	journal = {Journal of Spectral Theory}
   }
+DOI entry containing parentheses
+  $ doi2bib "doi:10.1016/0393-0440(89)90029-6"
+  @article{Albert_1989,
+  	doi = {10.1016/0393-0440(89)90029-6},
+  	url = {https://doi.org/10.1016/0393-0440(89)90029-6},
+  	year = 1989,
+  	publisher = {Elsevier {BV}},
+  	volume = {6},
+  	number = {4},
+  	pages = {627--649},
+  	author = {Claude Albert},
+  	title = {Le th{\'{e}}or{\`{e}}me de r{\'{e}}duction de Marsden-Weinstein en g{\'{e}}om{\'{e}}trie cosymplectique et de contact},
+  	journal = {Journal of Geometry and Physics}
+  }
diff --git a/tests/pubmed.t/run.t b/tests/pubmed.t/run.t
index db69d06..6132ac6 100644
--- a/tests/pubmed.t/run.t
+++ b/tests/pubmed.t/run.t
@@ -2,7 +2,7 @@ Pubmed entry with 'PMC' prefix.
   $ doi2bib PMC2883744
   @article{Comas_2010,
   	doi = {10.1038/ng.590},
-  	url = {https://doi.org/10.1038%2Fng.590},
+  	url = {https://doi.org/10.1038/ng.590},
   	year = 2010,
   	month = {may},
   	publisher = {Springer Science and Business Media {LLC}},