diff --git a/osc/core.py b/osc/core.py
index ace27d5d..6ff34286 100755
--- a/osc/core.py
+++ b/osc/core.py
@@ -1959,6 +1959,7 @@ def get_source_file(apiurl, prj, package, filename, targetfilename=None, revisio
         if not buf: break
         o.write(buf)
     o.close()
+    f.close()
 
 
 def get_binary_file(apiurl, prj, repo, arch,