diff --git a/win32/deps/libffi/build-x64.bat b/win32/deps/libffi/build-x64.bat
index d0a6f8cc..d80c2416 100644
--- a/win32/deps/libffi/build-x64.bat
+++ b/win32/deps/libffi/build-x64.bat
@@ -1,5 +1,6 @@
 #run this from mozilla-build\start-msvc11-x64.bat
 #cd /c/mozilla-build/hexchat/libffi-3.0.11
+#TODO: use own zlib build instead of mozilla-build one
 
 ./configure CC="$(pwd)/msvcc.sh -m64" LD=link CPP='cl -nologo -EP' CFLAGS='-O2' --build=x86_64-w64-mingw32
 make clean
diff --git a/win32/deps/libffi/build-x86.bat b/win32/deps/libffi/build-x86.bat
index f750d615..dd7c3870 100644
--- a/win32/deps/libffi/build-x86.bat
+++ b/win32/deps/libffi/build-x86.bat
@@ -1,5 +1,6 @@
 #run this from mozilla-build\start-msvc11.bat
 #cd /c/mozilla-build/hexchat/libffi-3.0.11
+#TODO: use own zlib build instead of mozilla-build one
 
 ./configure CC=$(pwd)/msvcc.sh LD=link CPP='cl -nologo -EP' CFLAGS='-O2' --build=i686-pc-mingw32
 make clean