diff --git a/kindlecomicconverter/KCC_gui.py b/kindlecomicconverter/KCC_gui.py
index e632e18e..bd7b9967 100644
--- a/kindlecomicconverter/KCC_gui.py
+++ b/kindlecomicconverter/KCC_gui.py
@@ -442,7 +442,7 @@ class WorkerThread(QThread):
                 if options.output is None:
                     options.output = fusion_source_parent
                 currentJobs.clear()
-                job, fusion_cover_path = comic2ebook.makeFusion(bookDir)
+                job, fusion_cover_path = comic2ebook.makeFusion(bookDir, self)
                 currentJobs.append(job)
                 MW.addMessage.emit(i18n.tr_arg(QCoreApplication.translate('KCCGUI', 'Created fusion at %1'), currentJobs[0]), 'info', False)
             except Exception as e:
diff --git a/kindlecomicconverter/comic2ebook.py b/kindlecomicconverter/comic2ebook.py
index 816a6338..1a9a13e5 100755
--- a/kindlecomicconverter/comic2ebook.py
+++ b/kindlecomicconverter/comic2ebook.py
@@ -1826,7 +1826,9 @@ def checkPre(source='KCC-'):
             if tempdir.startswith(source):
                 rmtree(os.path.join(root, tempdir), True)
 
-def makeFusion(sources: List[str]):
+def makeFusion(sources: List[str], qtgui=None):
+    global GUI
+    GUI = qtgui
     if len(sources) < 2:
         raise UserWarning(QCoreApplication.translate("KCCGUI", 'Fusion requires at least 2 sources. Did you forget to uncheck fusion?'))
     start = perf_counter()