diff --git a/src/dvsim/testplan.py b/src/dvsim/testplan.py
index 6d1b8e86..33dbe6e0 100644
--- a/src/dvsim/testplan.py
+++ b/src/dvsim/testplan.py
@@ -451,7 +451,7 @@ def __init__(self, tagged_filename: str, repo_top: Path, name: str) -> None:
             try:
                 self._parse_testplan(filename, tags, repo_top)
             except Exception as e:
-                msg = f"Error when parsing testplan at {filename}."
+                msg = f"Error when parsing testplan at {filename}: {e}"
                 raise RuntimeError(msg) from e
 
         # Represents current progress towards each stage. Stage = N.A.