diff --git a/Doxyfile.codec.in b/Doxyfile.codec.in
index 00ab43a1c..843537916 100644
--- a/Doxyfile.codec.in
+++ b/Doxyfile.codec.in
@@ -1485,12 +1485,12 @@ SKIP_FUNCTION_MACROS   = YES
 # If a tag file is not located in the directory in which doxygen
 # is run, you must also specify the path to the tagfile here.
 
-TAGFILES               =
+TAGFILES               = doc/libosmocore.tag=../../core/html
 
 # 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       = doc/libosmocodec.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
diff --git a/Doxyfile.core.in b/Doxyfile.core.in
index 045402fea..58d35bedb 100644
--- a/Doxyfile.core.in
+++ b/Doxyfile.core.in
@@ -1490,7 +1490,7 @@ 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       = doc/libosmocore.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
diff --git a/Doxyfile.gsm.in b/Doxyfile.gsm.in
index 76c8f81dc..ed4ff47d2 100644
--- a/Doxyfile.gsm.in
+++ b/Doxyfile.gsm.in
@@ -1485,12 +1485,12 @@ SKIP_FUNCTION_MACROS   = YES
 # If a tag file is not located in the directory in which doxygen
 # is run, you must also specify the path to the tagfile here.
 
-TAGFILES               =
+TAGFILES               = doc/libosmocore.tag=../../core/html
 
 # 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       = doc/libosmogsm.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
diff --git a/Doxyfile.vty.in b/Doxyfile.vty.in
index 2763823d4..073ee0cc5 100644
--- a/Doxyfile.vty.in
+++ b/Doxyfile.vty.in
@@ -1485,12 +1485,12 @@ SKIP_FUNCTION_MACROS   = YES
 # If a tag file is not located in the directory in which doxygen
 # is run, you must also specify the path to the tagfile here.
 
-TAGFILES               =
+TAGFILES               = doc/libosmocore.tag=../../core/html
 
 # 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       = doc/libosmovty.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