diff --git a/kcc/comic2ebook.py b/kcc/comic2ebook.py
index de71e4b..bb531bb 100755
--- a/kcc/comic2ebook.py
+++ b/kcc/comic2ebook.py
@@ -598,8 +598,8 @@ def genEpubStruct(path):
 
 
 def getWorkFolder(afile):
-    workdir = tempfile.mkdtemp('', 'KCC-TMP-', os.path.join(os.path.splitext(afile)[0], '..'))
     if os.path.isdir(afile):
+        workdir = tempfile.mkdtemp('', 'KCC-TMP-', os.path.join(os.path.splitext(afile)[0], '..'))
         try:
             os.rmdir(workdir)   # needed for copytree() fails if dst already exists
             fullPath = os.path.join(workdir, 'OEBPS', 'Images')
@@ -613,10 +613,10 @@ def getWorkFolder(afile):
         pdf = pdfjpgextract.PdfJpgExtract(afile)
         path, njpg = pdf.extract()
         if njpg == 0:
-            rmtree(workdir)
             rmtree(path)
             raise UserWarning("Failed to extract images.")
     else:
+        workdir = tempfile.mkdtemp('', 'KCC-TMP-', os.path.splitext(afile)[0])
         cbx = cbxarchive.CBxArchive(afile)
         if cbx.isCbxFile():
             try: