diff --git a/build.sh b/build.sh
index 68504b3e18cbd6ffe54f70c356183c275d442601..1eab4431bdca8bf134b259660077f9169bc1a497 100644
--- a/build.sh
+++ b/build.sh
@@ -24,7 +24,7 @@ build linux/arm/v7 rpi2
 # Raspberry Pi 3 image
 # os/arch string: linux/arm/v7
 # technically an armv8 chip but the OS is 32-bit
-build linux/arm/v7 rpi3.dockerfile
+build linux/arm/v7 rpi3
 
 # Raspberry Pi 4 image (32-bit)
 # os/arch string: linux/arm/v7