diff --git a/circle.yml b/circle.yml
index 4a7870f2f..240762e9c 100644
--- a/circle.yml
+++ b/circle.yml
@@ -20,18 +20,9 @@ test:
   pre:
     - scons clang.debug
   override:
-    - | # create gdb script
-      echo "set env MALLOC_CHECK_=3" > script.gdb
-      echo "run" >> script.gdb
-      echo "backtrace full" >> script.gdb
-      # gdb --help
-    # gdb segfaults
-    # - cat script.gdb | gdb --ex 'set print thread-events off' --return-child-result --args build/clang.debug/rippled --unittest
-    - build/clang.debug/rippled --unittest
+    # Execute unit tests under gdb
+    - gdb -return-child-result -quiet -batch -ex "set env MALLOC_CHECK_=3" -ex "set print thread-events off" -ex run -ex "thread apply all backtrace full" -ex "quit" --args build/clang.debug/rippled --unittest
     - npm install --progress=false
-    # Use build/(gcc|clang).debug/rippled
     - |
       echo "exports.default_server_config = {\"rippled_path\" : \"$HOME/rippled/build/clang.debug/rippled\"};" > test/config.js
-
-    # Run integration tests
     - npm test