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-rw-r--r--buildstream/plugins/sources/patch.py2
1 files changed, 2 insertions, 0 deletions
diff --git a/buildstream/plugins/sources/patch.py b/buildstream/plugins/sources/patch.py
index 8e833b411..6da1ea034 100644
--- a/buildstream/plugins/sources/patch.py
+++ b/buildstream/plugins/sources/patch.py
@@ -52,6 +52,8 @@ from buildstream import utils
class PatchSource(Source):
# pylint: disable=attribute-defined-outside-init
+ BST_REQUIRES_PREVIOUS_SOURCES_CACHE = True
+
def configure(self, node):
self.path = self.node_get_project_path(node, 'path',
check_is_file=True)