diff --git a/Scripts/Miscellaneous/EPUB_MOBI_to_PDF_converter/ebookConverter.py b/Scripts/Miscellaneous/EPUB_MOBI_to_PDF_converter/ebookConverter.py
index 6abc3e55f..3bb83b8ef 100644
--- a/Scripts/Miscellaneous/EPUB_MOBI_to_PDF_converter/ebookConverter.py
+++ b/Scripts/Miscellaneous/EPUB_MOBI_to_PDF_converter/ebookConverter.py
@@ -26,7 +26,7 @@ def chooseFile():
     clearFrame()
 
     label4 = Label(main_frame, text='Chosen file: '+CHOSEN_FILE_LOC.split('/')[-1])
-    button_next = Button(main_frame, text="CONVERT>> (takes 2-3 minutes)", padx=5, pady=5, bg='#F48024', fg='#FFFFFF', command=lambda:convertToPDF())
+    button_next = Button(main_frame, text="CONVERT>> (takes 2-3 minutes)", padx=5, pady=5, bg='#F48024', fg='#FFFFFF', command=convertToPDF)
     
     label4.grid(row=2, column=0, padx=10, pady=10)
     button_next.grid(row=4, column=0, padx=10, pady=10)
@@ -68,9 +68,9 @@ def window1():
 
     #define the labels, input box and buttons
     label = Label(main_frame, text='Step 1: Sign up at ConvertApi to get your secret key')
-    button_capi = Button(main_frame, text="OPEN WEBSITE", padx=5, pady=5, bg='#0095FF', fg='#FFFFFF', command=lambda:openWebsite())
+    button_capi = Button(main_frame, text="OPEN WEBSITE", padx=5, pady=5, bg='#0095FF', fg='#FFFFFF', command=openWebsite)
     label2 = Label(main_frame, text='Step 2: Enter the secret key below:')
-    button_next = Button(main_frame, text="NEXT>", padx=5, pady=5, bg='#F48024', fg='#FFFFFF', command=lambda:window2())
+    button_next = Button(main_frame, text="NEXT>", padx=5, pady=5, bg='#F48024', fg='#FFFFFF', command=window2)
 
     #arrange in grid
     label.grid(row=0, column=0, padx=10, pady=10)
@@ -86,7 +86,7 @@ def window2():
     clearFrame()
 
     label3 = Label(main_frame, text='Step 3: Choose the file to be converted(epub or mobi):')
-    button_file_choose = Button(main_frame, text="CHOOSE FILE", padx=5, pady=5, bg='#0095FF', fg='#FFFFFF', command=lambda:chooseFile())
+    button_file_choose = Button(main_frame, text="CHOOSE FILE", padx=5, pady=5, bg='#0095FF', fg='#FFFFFF', command=chooseFile)
 
     label3.grid(row=0, column=0, padx=10, pady=10)
     button_file_choose.grid(row=1, column=0, padx=10, pady=10)