diff --git a/gstlal/doc/Doxyfile.in b/gstlal/doc/Doxyfile.in
index 5187f75dc71e452cb2d10b069809a3d04e2707aa..2c84926f9436d8344f52c88766ae5409f929db84 100644
--- a/gstlal/doc/Doxyfile.in
+++ b/gstlal/doc/Doxyfile.in
@@ -1640,7 +1640,7 @@ TAGFILES               =
 # When a file name is specified after GENERATE_TAGFILE, doxygen will create
 # a tag file that is based on the input files it reads.
 
-GENERATE_TAGFILE       =
+GENERATE_TAGFILE       = gstlaldoxy.tag
 
 # If the ALLEXTERNALS tag is set to YES all external classes will be listed
 # in the class index. If set to NO only the inherited external classes