diff --git a/tools/dockerfile/interoptest/grpc_interop_go/build_interop.sh b/tools/dockerfile/interoptest/grpc_interop_go/build_interop.sh
index 6e7813ef0b10ada51cb9314ced2e4dc06c7fdfbd..82bb4a64835c8794ad13e33adef2cd3c04e4befe 100755
--- a/tools/dockerfile/interoptest/grpc_interop_go/build_interop.sh
+++ b/tools/dockerfile/interoptest/grpc_interop_go/build_interop.sh
@@ -31,7 +31,7 @@
 # Builds Go interop server and client in a base image.
 set -e
 
-go get google.golang.org/grpc
+go get google.golang.org/grpc/interop
 
 # Clone just the grpc-go source code without any dependencies.
 # We are cloning from a local git repo that contains the right revision