diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 24dcd99541..9493fb675f 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -627,6 +627,7 @@ sub GetFakeConfigure
 	$cfg .= ' --enable-integer-datetimes'
 	  if ($self->{options}->{integer_datetimes});
 	$cfg .= ' --enable-nls' if ($self->{options}->{nls});
+	$cfg .= ' --enable-tap-tests' if ($self->{options}->{tap_tests});
 	$cfg .= ' --with-ldap'  if ($self->{options}->{ldap});
 	$cfg .= ' --without-zlib' unless ($self->{options}->{zlib});
 	$cfg .= ' --with-extra-version' if ($self->{options}->{extraver});
diff --git a/src/tools/msvc/config_default.pl b/src/tools/msvc/config_default.pl
index b9f2ff41f7..e50be7e42d 100644
--- a/src/tools/msvc/config_default.pl
+++ b/src/tools/msvc/config_default.pl
@@ -3,7 +3,7 @@ use strict;
 use warnings;
 
 our $config = {
-	asserts => 0,    # --enable-cassert
+	asserts  => 0,    # --enable-cassert
 	  # integer_datetimes=>1,   # --enable-integer-datetimes - on is now default
 	  # float4byval=>1,         # --disable-float4-byval, on by default
 
@@ -13,18 +13,19 @@ our $config = {
 	# blocksize => 8,         # --with-blocksize, 8kB by default
 	# wal_blocksize => 8,     # --with-wal-blocksize, 8kB by default
 	# wal_segsize => 16,      # --with-wal-segsize, 16MB by default
-	ldap     => 1,        # --with-ldap
-	extraver => undef,    # --with-extra-version=<string>
-	nls      => undef,    # --enable-nls=<path>
-	tcl      => undef,    # --with-tls=<path>
-	perl     => undef,    # --with-perl
-	python   => undef,    # --with-python=<path>
-	openssl  => undef,    # --with-openssl=<path>
-	uuid     => undef,    # --with-ossp-uuid
-	xml      => undef,    # --with-libxml=<path>
-	xslt     => undef,    # --with-libxslt=<path>
-	iconv    => undef,    # (not in configure, path to iconv)
-	zlib     => undef     # --with-zlib=<path>
+	ldap      => 1,        # --with-ldap
+	extraver  => undef,    # --with-extra-version=<string>
+	nls       => undef,    # --enable-nls=<path>
+	tap_tests => undef,    # --enable-tap-tests
+	tcl       => undef,    # --with-tls=<path>
+	perl      => undef,    # --with-perl
+	python    => undef,    # --with-python=<path>
+	openssl   => undef,    # --with-openssl=<path>
+	uuid      => undef,    # --with-ossp-uuid
+	xml       => undef,    # --with-libxml=<path>
+	xslt      => undef,    # --with-libxslt=<path>
+	iconv     => undef,    # (not in configure, path to iconv)
+	zlib      => undef     # --with-zlib=<path>
 };
 
 1;