diff --git a/lldb/packages/Python/lldbsuite/test/make/Makefile.rules b/lldb/packages/Python/lldbsuite/test/make/Makefile.rules
index 2bfd1f7321bb..1a36010cac4c 100644
--- a/lldb/packages/Python/lldbsuite/test/make/Makefile.rules
+++ b/lldb/packages/Python/lldbsuite/test/make/Makefile.rules
@@ -50,6 +50,17 @@ ifeq "$(OS)" ""
 	OS = $(HOST_OS)
 endif
 
+#----------------------------------------------------------------------
+# If OS is Windows, force SHELL to be cmd
+#
+# Some versions of make on Windows will search for other shells such as
+# C:\cygwin\bin\sh.exe. This shell fails for numerous different reasons
+# so default to using cmd.exe.
+#----------------------------------------------------------------------
+ifeq "$(OS)" "Windows_NT"
+	SHELL = $(WINDIR)\system32\cmd.exe
+endif
+
 #----------------------------------------------------------------------
 # If TRIPLE is not defined try to set the ARCH, CC, CFLAGS, and more
 # from the triple alone