diff --git a/go.mod b/go.mod
new file mode 100644
index 000000000..7fab5d9f3
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,9 @@
+module golang.org/x/mobile
+
+go 1.11
+
+require (
+	golang.org/x/exp v0.0.0-20190306152737-a1d7652674e8
+	golang.org/x/image v0.0.0-20190227222117-0694c2d4d067
+	golang.org/x/sys v0.0.0-20190312061237-fead79001313 // indirect
+)
diff --git a/go.sum b/go.sum
new file mode 100644
index 000000000..dc43c7d8a
--- /dev/null
+++ b/go.sum
@@ -0,0 +1,7 @@
+golang.org/x/exp v0.0.0-20190306152737-a1d7652674e8 h1:idBdZTd9UioThJp8KpM/rTSinK/ChZFBE43/WtIy8zg=
+golang.org/x/exp v0.0.0-20190306152737-a1d7652674e8/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
+golang.org/x/image v0.0.0-20190227222117-0694c2d4d067 h1:KYGJGHOQy8oSi1fDlSpcZF0+juKwk/hEMv5SiwHogR0=
+golang.org/x/image v0.0.0-20190227222117-0694c2d4d067/go.mod h1:kZ7UVZpmo3dzQBMxlp+ypCbDeSB+sBbTgSJuh5dn5js=
+golang.org/x/sys v0.0.0-20190312061237-fead79001313 h1:pczuHS43Cp2ktBEEmLwScxgjWsBSzdaQiKzUyf3DTTc=
+golang.org/x/sys v0.0.0-20190312061237-fead79001313/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=