diff --git a/build-scripts/get_labels_expr.py b/build-scripts/get_labels_expr.py
index d0e1754eb..7df9f605b 100644
--- a/build-scripts/get_labels_expr.py
+++ b/build-scripts/get_labels_expr.py
@@ -70,9 +70,10 @@ def main(labels_f_path, exotics_f_path, run_on_exotics, only_exotics):
     else:
         labels_to_run = all_labels
 
-    print("(", end="")
-    labels_eqs = ('label == "%s"' % label for label in sorted(labels_to_run))
-    print(" || \\\n ".join(labels_eqs) + ")")
+    if len(labels_to_run) != 0:
+        print("(", end="")
+        labels_eqs = ('label == "%s"' % label for label in sorted(labels_to_run))
+        print(" || \\\n ".join(labels_eqs) + ")")
 
     return 0