diff --git a/build.sh b/build.sh
index e7ed7d3904ecafdff1ba3b10bc74433d80344698..68504b3e18cbd6ffe54f70c356183c275d442601 100644
--- a/build.sh
+++ b/build.sh
@@ -9,6 +9,10 @@ function build() {
 # os/arch string: linux/amd64
 build linux/amd64 amd64
 
+# i686 image
+# os/arch string: linux/386
+build linux/386 i686
+
 # Raspberry Pi 1 image
 # os/arch string: linux/arm/v6
 build linux/arm/v6 rpi1