diff --git a/hamstertools/__init__.py b/hamstertools/__init__.py
index 1d610c1..9f11e6e 100755
--- a/hamstertools/__init__.py
+++ b/hamstertools/__init__.py
@@ -834,6 +834,12 @@ def clockify_import(ctx, search, after, before):
             )
             continue
 
+        if f.end_time is None:
+            print(
+                f"still in progress, skipping {f.id} ({f.activity.category.name} » {f.activity.name})"
+            )
+            continue
+
         t = export_fact(
             api,
             mapping.clockify_project_id,