diff --git a/python/sdist/MANIFEST.in b/python/sdist/MANIFEST.in
index 762987665f..5be0b1ebc6 100644
--- a/python/sdist/MANIFEST.in
+++ b/python/sdist/MANIFEST.in
@@ -10,7 +10,7 @@ include version.txt
 include LICENSE.md
 exclude amici/*.so
 exclude amici/*.dll
-prune **/build/
+prune **/build
 prune amici/share
 prune amici/lib
 prune amici/ThirdParty/SuiteSparse/lib