diff --git a/badges/test_coverage.svg b/badges/test_coverage.svg
index 2fad913a4f4cc08b6c330970ac375f73ef7007a3..179c6a1788ecba3678a21ca99b50643f3ec81e57 100644
--- a/badges/test_coverage.svg
+++ b/badges/test_coverage.svg
@@ -15,7 +15,7 @@
     <g fill="#fff" text-anchor="middle" font-family="DejaVu Sans,Verdana,Geneva,sans-serif" font-size="11">
         <text x="31.5" y="15" fill="#010101" fill-opacity=".3">coverage</text>
         <text x="31.5" y="14">coverage</text>
-        <text x="80" y="15" fill="#010101" fill-opacity=".3">62%</text>
-        <text x="80" y="14">62%</text>
+        <text x="80" y="15" fill="#010101" fill-opacity=".3">63%</text>
+        <text x="80" y="14">63%</text>
     </g>
 </svg>
diff --git a/binarycpython/tests/tests_population_extensions/test_version_info.py b/binarycpython/tests/tests_population_extensions/test_version_info.py
index 7599dc6502dd1536a9a4dac62d78a4b4db0d689f..195fdfceb3fde14f3b2f0bf8984af76b849e1136 100644
--- a/binarycpython/tests/tests_population_extensions/test_version_info.py
+++ b/binarycpython/tests/tests_population_extensions/test_version_info.py
@@ -4,6 +4,7 @@ Unit tests for the _version_info Population extension module
 TODO: minimum_stellar_mass
 """
 
+import os
 import unittest
 
 from binarycpython.utils.functions import (
@@ -98,6 +99,31 @@ class test_return_binary_c_version_info(unittest.TestCase):
         self.assertIn("nucleosynthesis_sources", version_info_parsed.keys())
         self.assertIn("miscellaneous", version_info_parsed.keys())
 
+    def test_envvar(self):
+        with Capturing() as output:
+            self._test_envvar()
+
+    def _test_envvar(self):
+        """
+        Test for the parsed version info with a value already present
+        """
+
+        os.environ["BINARY_C_MACRO_HEADER"] = 'macroxyz'
+
+        # also tests the parse_version_info indirectly
+        version_info_parsed = self._version_info_pop.return_binary_c_version_info(parsed=True)
+
+        self.assertTrue(isinstance(version_info_parsed, dict))
+        self.assertIn("isotopes", version_info_parsed.keys())
+        self.assertIn("argpairs", version_info_parsed.keys())
+        self.assertIn("ensembles", version_info_parsed.keys())
+        self.assertIn("macros", version_info_parsed.keys())
+        self.assertIn("elements", version_info_parsed.keys())
+        self.assertIn("dt_limits", version_info_parsed.keys())
+        self.assertIn("nucleosynthesis_sources", version_info_parsed.keys())
+        self.assertIn("miscellaneous", version_info_parsed.keys())
+
+
 class test_parse_binary_c_version_info(unittest.TestCase):
     """
     Unittests for function parse_binary_c_version_info