diff --git a/folium/utilities.py b/folium/utilities.py
index 48cabb715d..6a12e4bfbf 100644
--- a/folium/utilities.py
+++ b/folium/utilities.py
@@ -4,7 +4,6 @@
 import json
 import math
 import os
-import re
 import tempfile
 import uuid
 from collections.abc import Iterable, Iterator, Sequence
@@ -412,8 +411,8 @@ def remove_empty(**kwargs: TypeJsonValue) -> dict[str, TypeJsonValueNoNone]:
 
 
 def escape_backticks(text: str) -> str:
-    """Escape backticks so text can be used in a JS template."""
-    return re.sub(r"(?<!\\)`", r"\`", text)
+    """Escape backslashes and backticks so text can be used in a JS template."""
+    return text.replace("\\", "\\\\").replace("`", "\\`")
 
 
 def escape_double_quotes(text: str) -> str:
diff --git a/tests/test_map.py b/tests/test_map.py
index 581e603ff7..551ffb2b3d 100644
--- a/tests/test_map.py
+++ b/tests/test_map.py
@@ -234,15 +234,17 @@ def test_popup_backticks():
     assert normalize(rendered) == normalize(expected)
 
 
-def test_popup_backticks_already_escaped():
+def test_popup_backslashes():
     m = Map()
-    popup = Popup("back\\`tick").add_to(m)
+    # A backslash followed by a digit would become an illegal octal escape
+    # sequence inside the JS template literal if it is not escaped, see #1907.
+    popup = Popup("C:\\path\\20190221").add_to(m)
     rendered = popup._template.render(this=popup, kwargs={})
-    expected = """
+    expected = r"""
     var {popup_name} = L.popup({{
         "maxWidth": "100%",
     }});
-    var {html_name} = $(`<div id="{html_name}" style="width: 100.0%; height: 100.0%;">back\\`tick</div>`)[0];
+    var {html_name} = $(`<div id="{html_name}" style="width: 100.0%; height: 100.0%;">C:\\path\\20190221</div>`)[0];
     {popup_name}.setContent({html_name});
     {map_name}.bindPopup({popup_name});
     """.format(