diff --git a/Doc/lib.tex b/Doc/lib.tex
index 537e48ca7b7..5e129fb624f 100644
--- a/Doc/lib.tex
+++ b/Doc/lib.tex
@@ -223,7 +223,7 @@ add new extensions to Python and how to embed it in other applications.
 \input{libundoc}
 
 \renewcommand{\indexname}{Module Index}
-\input{modules.ind}		% Module Index
+\input{modlib.ind}		% Module Index
 
 \renewcommand{\indexname}{Index}
 \input{lib.ind}			% Index
diff --git a/Doc/lib/lib.tex b/Doc/lib/lib.tex
index 537e48ca7b7..5e129fb624f 100644
--- a/Doc/lib/lib.tex
+++ b/Doc/lib/lib.tex
@@ -223,7 +223,7 @@ add new extensions to Python and how to embed it in other applications.
 \input{libundoc}
 
 \renewcommand{\indexname}{Module Index}
-\input{modules.ind}		% Module Index
+\input{modlib.ind}		% Module Index
 
 \renewcommand{\indexname}{Index}
 \input{lib.ind}			% Index