diff --git a/Misc/NEWS b/Misc/NEWS
index 018adf0..2b73e36 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -838,6 +838,7 @@
 -----
 
 - Issue #6716: Quote -x arguments of compileall in MSI installer.
+  Exclude 2to3 tests from compileall.
 
 - Issue #3920, #7903: Define _BSD_SOURCE on OpenBSD 4.4 through 4.9.
 
diff --git a/Tools/msi/msi.py b/Tools/msi/msi.py
index fb43137..3a396ca 100644
--- a/Tools/msi/msi.py
+++ b/Tools/msi/msi.py
@@ -404,7 +404,7 @@
               ("VerdanaRed9", "Verdana", 9, 255, 0),
              ])
 
-    compileargs = r'-Wi "[TARGETDIR]Lib\compileall.py" -f -x "bad_coding|badsyntax|site-packages|py2_" "[TARGETDIR]Lib"'
+    compileargs = r'-Wi "[TARGETDIR]Lib\compileall.py" -f -x "bad_coding|badsyntax|site-packages|py2_|lib2to3\\tests" "[TARGETDIR]Lib"'
     lib2to3args = r'-c "import lib2to3.pygram, lib2to3.patcomp;lib2to3.patcomp.PatternCompiler()"'
     # See "CustomAction Table"
     add_data(db, "CustomAction", [