diff --git a/contrib/teamcity/build-configurations.yml b/contrib/teamcity/build-configurations.yml
--- a/contrib/teamcity/build-configurations.yml
+++ b/contrib/teamcity/build-configurations.yml
@@ -23,6 +23,8 @@
       - test/
 
   secp256k1:
+    runOnDiffRegex:
+      - src/secp256k1/
     Werror: true
     targets:
       - - secp256k1