diff --git a/run-test-client.sh b/run-test-client.sh
index 02059f8e5c..373d3335ac 100755
--- a/run-test-client.sh
+++ b/run-test-client.sh
@@ -1,7 +1,9 @@
 #!/bin/bash -e
 cd "$(dirname "$0")"
 cat >&2 <<EOF
-Gradle is no longer run automatically. Make sure to run './gradlew installDist' or
-'./gradlew :grpc-interop-testing:installDist' after any changes.
+Gradle is no longer run automatically. Make sure to run
+'./gradlew installDist -PskipCodegen=true' or
+'./gradlew :grpc-interop-testing:installDist -PskipCodegen' after any changes.
+-PskipCodegen=true is optional, but requires less setup.
 EOF
 exec ./interop-testing/build/install/grpc-interop-testing/bin/test-client "$@"
diff --git a/run-test-server.sh b/run-test-server.sh
index 28cb9f9cc0..cf74571697 100755
--- a/run-test-server.sh
+++ b/run-test-server.sh
@@ -1,7 +1,9 @@
 #!/bin/bash -e
 cd "$(dirname "$0")"
 cat >&2 <<EOF
-Gradle is no longer run automatically. Make sure to run './gradlew installDist' or
-'./gradlew :grpc-interop-testing:installDist' after any changes.
+Gradle is no longer run automatically. Make sure to run
+'./gradlew installDist -PskipCodegen=true' or
+'./gradlew :grpc-interop-testing:installDist -PskipCodegen' after any changes.
+-PskipCodegen=true is optional, but requires less setup.
 EOF
 exec ./interop-testing/build/install/grpc-interop-testing/bin/test-server "$@"