diff --git a/scripts/ebook/hpmor-ebook.tex b/scripts/ebook/hpmor-ebook.tex
index 398603a0..cbd003ea 100644
--- a/scripts/ebook/hpmor-ebook.tex
+++ b/scripts/ebook/hpmor-ebook.tex
@@ -7,10 +7,6 @@
 
 \input{layout/hp-intro}
 
-\renewenvironment{headlines}{}{}
-\renewenvironment{writtenNote}{}{}
-\renewenvironment{playdialog}{}{}
-
 \newcommand{\writtenNoteA}[1]{\par\textcolor{writtenNote}{#1}}
 \renewcommand{\parsel}[1]{\textcolor{parsel}{#1}}
 \renewcommand{\McGonagallWhiteBoard}[1]{\textcolor{McGonagallWhiteBoard}{\par#1}}
diff --git a/scripts/ebook/step_3.py b/scripts/ebook/step_3.py
index f14a275a..fcc18c3f 100755
--- a/scripts/ebook/step_3.py
+++ b/scripts/ebook/step_3.py
@@ -25,6 +25,16 @@
     date_str = dt.datetime.now(dt.UTC).date().strftime("%d.%m.%Y")
     cont = cont.replace("\\today{}", date_str)
 
+    # empty the newenvironments: headlines, writtenNote, playdialog
+    #  to prevent implications on other cleanup scripts
+    cont = re.sub(
+        r"\\newenvironment\{(headlines|writtenNote|playdialog)\}.*?\n\n",
+        r"\\newenvironment{\1}{}{}\n\n",
+        cont,
+        flags=re.DOTALL,
+        count=3,
+    )
+
     # writtenNote env -> \writtenNoteA
     cont = re.sub(
         r"\s*\\begin\{writtenNote\}\s*(.*?)\s*\\end\{writtenNote\}",