diff --git a/test/blackbox-tests/test-cases/reason/pped.pp.re b/test/blackbox-tests/test-cases/reason/copy-sources/pped.pp.re
similarity index 100%
rename from test/blackbox-tests/test-cases/reason/pped.pp.re
rename to test/blackbox-tests/test-cases/reason/copy-sources/pped.pp.re
diff --git a/test/blackbox-tests/test-cases/reason/pped.rei.pp b/test/blackbox-tests/test-cases/reason/copy-sources/pped.rei.pp
similarity index 100%
rename from test/blackbox-tests/test-cases/reason/pped.rei.pp
rename to test/blackbox-tests/test-cases/reason/copy-sources/pped.rei.pp
diff --git a/test/blackbox-tests/test-cases/reason/jbuild b/test/blackbox-tests/test-cases/reason/jbuild
index b488093b..43e7037e 100644
--- a/test/blackbox-tests/test-cases/reason/jbuild
+++ b/test/blackbox-tests/test-cases/reason/jbuild
@@ -1,7 +1,7 @@
 (jbuild_version 1)
 
-(rule (copy pped.pp.re pped.re))
-(rule (copy pped.rei.pp pped.rei))
+(rule (copy copy-sources/pped.pp.re pped.re))
+(rule (copy copy-sources/pped.rei.pp pped.rei))
 
 (library
  ((name rlib)