diff --git a/CHANGES b/CHANGES
index 2cb81ac6ebd..f9e953e98c2 100644
--- a/CHANGES
+++ b/CHANGES
@@ -98,6 +98,8 @@ Bugs fixed
 * #8683: :confval:`html_last_updated_fmt` generates wrong time zone for %Z
 * #1112: ``download`` role creates duplicated copies when relative path is
   specified
+* #8214: LaTeX: The :rst:role:`index` role and the glossary generate duplicate
+  entries in the LaTeX index (if both used for same term)
 * #8735: LaTeX: wrong internal links in pdf to captioned code-blocks when
   :confval:`numfig` is not True
 * #8442: LaTeX: some indexed terms are ignored when using xelatex engine
diff --git a/sphinx/texinputs/sphinx.sty b/sphinx/texinputs/sphinx.sty
index 343924753d8..f406b1089f9 100644
--- a/sphinx/texinputs/sphinx.sty
+++ b/sphinx/texinputs/sphinx.sty
@@ -1859,8 +1859,8 @@
 \def\sphinxstyleindexextra   #1{ (\emph{#1})}
 \def\sphinxstyleindexpageref #1{, \pageref{#1}}
 \def\sphinxstyleindexpagemain#1{\textbf{#1}}
-\protected\def\spxentry#1{#1}% will get \let to \sphinxstyleindexentry in index
-\protected\def\spxextra#1{#1}% will get \let to \sphinxstyleindexextra in index
+\def\spxentry{\@backslashchar spxentry}% let to \sphinxstyleindexentry in index
+\def\spxextra{\@backslashchar spxextra}% let to \sphinxstyleindexextra in index
 \def\sphinxstyleindexlettergroup #1%
     {{\Large\sffamily#1}\nopagebreak\vspace{1mm}}
 \def\sphinxstyleindexlettergroupDefault #1%