diff --git a/mingw-w64-crt/lib-common/htmlhelp.def b/mingw-w64-crt/lib-common/htmlhelp.def
new file mode 100644
index 0000000..bbd0dda
--- /dev/null
+++ b/mingw-w64-crt/lib-common/htmlhelp.def
@@ -0,0 +1,15 @@
+; library name is libhtmlhelp.a but
+; functions exported from hhcrtl.ocx
+
+LIBRARY "hhctrl.ocx"
+EXPORTS
+LoadHHA
+DllCanUnloadNow
+AuthorMsg
+DllGetClassObject
+DllRegisterServer
+DllUnregisterServer
+doWinMain
+HtmlHelpA
+HtmlHelpW
+HhWindowThread
diff --git a/mingw-w64-crt/lib32/Makefile.am b/mingw-w64-crt/lib32/Makefile.am
index 5dc1630..78042b8 100644
--- a/mingw-w64-crt/lib32/Makefile.am
+++ b/mingw-w64-crt/lib32/Makefile.am
@@ -148,6 +148,7 @@
 lib32_DATA += %reldir%/libhid.a
 lib32_DATA += %reldir%/libhidclass.a
 lib32_DATA += %reldir%/libhidparse.a
+lib32_DATA += %reldir%/libhtmlhelp.a
 lib32_DATA += %reldir%/libhttpapi.a
 lib32_DATA += %reldir%/libicmui.a
 lib32_DATA += %reldir%/libigmpagnt.a
diff --git a/mingw-w64-crt/lib32/htmlhelp.def b/mingw-w64-crt/lib32/htmlhelp.def
new file mode 100644
index 0000000..bdd0ca4
--- /dev/null
+++ b/mingw-w64-crt/lib32/htmlhelp.def
@@ -0,0 +1,15 @@
+; library name is libhtmlhelp.a but
+; functions exported from hhcrtl.ocx
+
+LIBRARY "hhctrl.ocx"
+EXPORTS
+LoadHHA@8
+DllCanUnloadNow@0
+AuthorMsg@16
+DllGetClassObject@12
+DllRegisterServer@0
+DllUnregisterServer@0
+doWinMain@8
+HtmlHelpA@16
+HtmlHelpW@16
+HhWindowThread@4
diff --git a/mingw-w64-crt/lib64/Makefile.am b/mingw-w64-crt/lib64/Makefile.am
index 1d881f4..4011ac9 100644
--- a/mingw-w64-crt/lib64/Makefile.am
+++ b/mingw-w64-crt/lib64/Makefile.am
@@ -190,6 +190,7 @@
 lib64_DATA += %reldir%/libhnetwiz.a
 lib64_DATA += %reldir%/libhostmib.a
 lib64_DATA += %reldir%/libhotplug.a
+lib64_DATA += %reldir%/libhtmlhelp.a
 lib64_DATA += %reldir%/libhtrn_jis.a
 lib64_DATA += %reldir%/libhttpapi.a
 lib64_DATA += %reldir%/libhttpext.a
diff --git a/mingw-w64-crt/libarm32/Makefile.am b/mingw-w64-crt/libarm32/Makefile.am
index b08b1ed..e3ad813 100644
--- a/mingw-w64-crt/libarm32/Makefile.am
+++ b/mingw-w64-crt/libarm32/Makefile.am
@@ -291,6 +291,7 @@
 libarm32_DATA += %reldir%/libhlink.a
 libarm32_DATA += %reldir%/libhnetcfg.a
 libarm32_DATA += %reldir%/libhotplug.a
+libarm32_DATA += %reldir%/libhtmlhelp.a
 libarm32_DATA += %reldir%/libhttpapi.a
 libarm32_DATA += %reldir%/libhttpprxm.a
 libarm32_DATA += %reldir%/libhttpprxp.a
diff --git a/mingw-w64-crt/libarm64/Makefile.am b/mingw-w64-crt/libarm64/Makefile.am
index 10bd770..d206002 100644
--- a/mingw-w64-crt/libarm64/Makefile.am
+++ b/mingw-w64-crt/libarm64/Makefile.am
@@ -110,6 +110,7 @@
 libarm64_DATA += %reldir%/libhid.a
 libarm64_DATA += %reldir%/libhlink.a
 libarm64_DATA += %reldir%/libhotplug.a
+libarm64_DATA += %reldir%/libhtmlhelp.a
 libarm64_DATA += %reldir%/libhtui.a
 libarm64_DATA += %reldir%/libiashlpr.a
 libarm64_DATA += %reldir%/libiassam.a