diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index fe2be0a..baf0924 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -28,7 +28,7 @@ jobs:
           emoji: true
           verbose: true
           job-summary: true
-          custom-arguments: 'nwb_linkml'
+          custom-arguments: '-c nwb_linkml/pyproject.toml'
 
       - run: "coveralls --service=github"
         env:
diff --git a/nwb_linkml/pyproject.toml b/nwb_linkml/pyproject.toml
index 4f111e1..66bb509 100644
--- a/nwb_linkml/pyproject.toml
+++ b/nwb_linkml/pyproject.toml
@@ -74,7 +74,7 @@ testpaths = [
 [tool.coverage.run]
 branch = true
 source = [
-"src/nwb_linkml"
+"nwb_linkml"
 ]
 omit = [
     "*/nwb_schema_language/*",