diff --git a/sig/Programming-language/sig-info.yaml b/sig/Programming-language/sig-info.yaml
index e3ce17c59c8dd0a11f6c9aa6065c4bd393704ae8..0fdd989ddfd4d620a81918c8d9aa8b6c1debd437 100644
--- a/sig/Programming-language/sig-info.yaml
+++ b/sig/Programming-language/sig-info.yaml
@@ -228,6 +228,7 @@ repositories:
   - src-openeuler/cvs
   - src-openeuler/Cython
   - src-openeuler/cmake
+  - src-openeuler/cmake-extras
   - src-openeuler/cmocka
   - src-openeuler/crash-gcore-command
   - src-openeuler/gupnp
diff --git a/sig/Programming-language/src-openeuler/c/cmake-extras.yaml b/sig/Programming-language/src-openeuler/c/cmake-extras.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..4d750067b218755330e8ca7488c664a096556b8a
--- /dev/null
+++ b/sig/Programming-language/src-openeuler/c/cmake-extras.yaml
@@ -0,0 +1,10 @@
+name: cmake-extras
+description: 'A collection of add-ons for the CMake build tool.'
+upstream:
+  homepage: https://gitlab.com/ubports/development/core/cmake-extras
+  regex: (\d+\.\d+)
+  version_url: https://gitlab.com/api/v4/projects/ubports%2Fdevelopment%2Fcore%2Fcmake-extras/repository/tags
+branches:
+- name: master
+  type: protected
+type: public