diff --git a/test_regress/driver.py b/test_regress/driver.py
index 19cc1ff06..06e0911e7 100755
--- a/test_regress/driver.py
+++ b/test_regress/driver.py
@@ -121,7 +121,7 @@ class SAIFParser:
                 if not line:
                     continue
 
-                match = re.search(r'INSTANCE\s+(\w*)', line)
+                match = re.search(r'INSTANCE\s+([\w.]*)', line)
                 if match:
                     instance_name = match.groups()[0]