diff --git a/contrib/teamcity/build-configurations.sh b/contrib/teamcity/build-configurations.sh
--- a/contrib/teamcity/build-configurations.sh
+++ b/contrib/teamcity/build-configurations.sh
@@ -180,6 +180,8 @@
     )
     CMAKE_FLAGS="${CMAKE_FLAGS[*]}" "${CI_SCRIPTS_DIR}"/build_cmake.sh
 
+    ulimit -c unlimited
+
     # Unit tests
     run_test_bitcoin
     run_test_bitcoin "with next upgrade activated" -phononactivationtime=1575158400