diff --git a/collect.py b/collect.py
index 3bcaa9f..c761b49 100644
--- a/collect.py
+++ b/collect.py
@@ -457,6 +457,10 @@ def main():
         if is_freebsd():
             process.terminate()
             process.kill()
+
+            gstatData.flush()
+            gstatError.flush()
+
             gstatData.close()
             gstatError.close()
 
@@ -466,6 +470,10 @@ def main():
         if is_freebsd():
             process.terminate()
             process.kill()
+
+            gstatData.flush()
+            gstatError.flush()
+
             gstatData.close()
             gstatError.close()