diff --git a/collect.py b/collect.py
index 779feb2..0f3d9f2 100644
--- a/collect.py
+++ b/collect.py
@@ -449,7 +449,7 @@ def main():
                 "-p",
                 "-I",
                 "5s",
-                ">",
+                ">>",
                 "gstat.csv",
             ]