diff --git a/autobuild.xml b/autobuild.xml
index 96f6918a990ebcd86991df4ab632ab7f2629132a..954299d1f36fc574999ec651d744b334b265ecfa 100644
--- a/autobuild.xml
+++ b/autobuild.xml
@@ -3261,7 +3261,6 @@ Copyright (c) 2012, 2014, 2015, 2016 nghttp2 contributors</string>
                   <string>/t:Build</string>
                   <string>/p:useenv=true</string>
                   <string>/verbosity:minimal</string>
-                  <string>/toolsversion:4.0</string>
                   <string>/p:VCBuildAdditionalOptions= /incremental</string>
                 </array>
               </map>
@@ -3335,7 +3334,6 @@ Copyright (c) 2012, 2014, 2015, 2016 nghttp2 contributors</string>
                   <string>/t:Build</string>
                   <string>/p:useenv=true</string>
                   <string>/verbosity:minimal</string>
-                  <string>/toolsversion:4.0</string>
                   <string>/p:VCBuildAdditionalOptions= /incremental</string>
                 </array>
               </map>