diff --git a/tests/data/test2086 b/tests/data/test2086
index ce60aa831f..5055a69b66 100644
--- a/tests/data/test2086
+++ b/tests/data/test2086
@@ -34,6 +34,10 @@ libprereq
 <command>
 %HOST6IP:%HTTP6PORT/%TESTNUMBER#ipv6
 </command>
+<setenv>
+# Needed for MSYS2 to not treat the URL as a path list
+MSYS2_ARG_CONV_EXCL=*
+</setenv>
 </client>
 
 # Verify data after the test has been "shot"