diff --git a/autotests/export/docbook/index_multiple.lyx b/autotests/export/docbook/index_multiple.lyx
new file mode 100644
index 0000000000..66542aaf15
--- /dev/null
+++ b/autotests/export/docbook/index_multiple.lyx
@@ -0,0 +1,248 @@
+#LyX 2.4 created this file. For more info see https://www.lyx.org/
+\lyxformat 609
+\begin_document
+\begin_header
+\save_transient_properties true
+\origin unavailable
+\textclass article
+\use_default_options true
+\maintain_unincluded_children no
+\language american
+\language_package default
+\inputencoding utf8
+\fontencoding auto
+\font_roman "default" "default"
+\font_sans "default" "default"
+\font_typewriter "default" "default"
+\font_math "auto" "auto"
+\font_default_family default
+\use_non_tex_fonts false
+\font_sc false
+\font_roman_osf false
+\font_sans_osf false
+\font_typewriter_osf false
+\font_sf_scale 100 100
+\font_tt_scale 100 100
+\use_microtype false
+\use_dash_ligatures true
+\graphics default
+\default_output_format default
+\output_sync 0
+\bibtex_command default
+\index_command default
+\float_placement class
+\float_alignment class
+\paperfontsize default
+\spacing single
+\use_hyperref false
+\papersize default
+\use_geometry false
+\use_package amsmath 1
+\use_package amssymb 1
+\use_package cancel 1
+\use_package esint 1
+\use_package mathdots 1
+\use_package mathtools 1
+\use_package mhchem 1
+\use_package stackrel 1
+\use_package stmaryrd 1
+\use_package undertilde 1
+\cite_engine basic
+\cite_engine_type default
+\biblio_style plain
+\use_bibtopic false
+\use_indices true
+\paperorientation portrait
+\suppress_date false
+\justification true
+\use_refstyle 1
+\use_minted 0
+\use_lineno 0
+\index Index
+\shortcut idx
+\color #008000
+\end_index
+\index Secondary
+\shortcut sec
+\color #550000
+\end_index
+\secnumdepth 3
+\tocdepth 3
+\paragraph_separation indent
+\paragraph_indentation default
+\is_math_indent 0
+\math_numbering_side default
+\quotes_style english
+\dynamic_quotes 0
+\papercolumns 1
+\papersides 1
+\paperpagestyle default
+\tablestyle default
+\tracking_changes false
+\output_changes false
+\change_bars false
+\postpone_fragile_content true
+\html_math_output 0
+\html_css_as_file 0
+\html_be_strict false
+\docbook_table_output 0
+\docbook_mathml_prefix 1
+\end_header
+
+\begin_body
+
+\begin_layout Title
+Multiple indices tests
+\end_layout
+
+\begin_layout Standard
+\begin_inset Index idx
+range none
+pageformat default
+status open
+
+\begin_layout Plain Layout
+A
+\end_layout
+
+\end_inset
+
+
+\end_layout
+
+\begin_layout Standard
+\begin_inset Index idx
+range none
+pageformat default
+status open
+
+\begin_layout Plain Layout
+A
+\begin_inset IndexMacro subindex
+status open
+
+\begin_layout Plain Layout
+B
+\end_layout
+
+\end_inset
+
+
+\end_layout
+
+\end_inset
+
+
+\end_layout
+
+\begin_layout Standard
+\begin_inset Index sec
+range none
+pageformat default
+status open
+
+\begin_layout Plain Layout
+A
+\begin_inset IndexMacro subindex
+status open
+
+\begin_layout Plain Layout
+B
+\end_layout
+
+\end_inset
+
+
+\begin_inset IndexMacro subindex
+status open
+
+\begin_layout Plain Layout
+C
+\end_layout
+
+\end_inset
+
+
+\end_layout
+
+\end_inset
+
+
+\end_layout
+
+\begin_layout Standard
+\begin_inset Index sec
+range none
+pageformat default
+status open
+
+\begin_layout Plain Layout
+A
+\begin_inset IndexMacro subindex
+status open
+
+\begin_layout Plain Layout
+D
+\end_layout
+
+\end_inset
+
+
+\end_layout
+
+\end_inset
+
+
+\end_layout
+
+\begin_layout Standard
+\begin_inset Index sec
+range none
+pageformat default
+status open
+
+\begin_layout Plain Layout
+E
+\begin_inset IndexMacro subindex
+status open
+
+\begin_layout Plain Layout
+F
+\end_layout
+
+\end_inset
+
+
+\end_layout
+
+\end_inset
+
+
+\end_layout
+
+\begin_layout Standard
+\begin_inset CommandInset index_print
+LatexCommand printindex
+type "idx"
+name "Index"
+literal "false"
+
+\end_inset
+
+
+\end_layout
+
+\begin_layout Standard
+\begin_inset CommandInset index_print
+LatexCommand printindex
+type "sec"
+name "Index"
+literal "false"
+
+\end_inset
+
+
+\end_layout
+
+\end_body
+\end_document
diff --git a/autotests/export/docbook/index_multiple.xml b/autotests/export/docbook/index_multiple.xml
new file mode 100644
index 0000000000..dcc60ecae0
--- /dev/null
+++ b/autotests/export/docbook/index_multiple.xml
@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- This DocBook file was created by LyX 2.4.0dev
+  See https://www.lyx.org/ for more information -->
+<article xml:lang="en_US" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:m="http://www.w3.org/1998/Math/MathML" xmlns:xi="http://www.w3.org/2001/XInclude" version="5.2">
+<title>Multiple indices tests</title>
+<para><indexterm type="idx"><primary>A</primary></indexterm></para>
+<para><indexterm type="idx"><primary>A</primary><secondary>B</secondary></indexterm></para>
+<para><indexterm type="sec"><primary>A</primary><secondary>B</secondary><tertiary>C</tertiary></indexterm></para>
+<para><indexterm type="sec"><primary>A</primary><secondary>D</secondary></indexterm></para>
+<para><indexterm type="sec"><primary>E</primary><secondary>F</secondary></indexterm></para>
+</article>
\ No newline at end of file
diff --git a/src/insets/InsetIndex.cpp b/src/insets/InsetIndex.cpp
index bcae16cd5c..848d53026e 100644
--- a/src/insets/InsetIndex.cpp
+++ b/src/insets/InsetIndex.cpp
@@ -1680,6 +1680,7 @@ docstring InsetPrintIndex::xhtml(XMLStream &, OutputParams const & op) const
 	// Collect the index entries in a form we can use them.
 	vector<IndexEntry> entries;
 	for (const TocItem& item : *toc) {
+		static_cast<const InsetIndex*>(&(item.dit().inset()))->params_.index;
 		if (item.isOutput())
 			entries.emplace_back(IndexEntry{static_cast<const InsetIndex*>(&(item.dit().inset())), &op});
 	}