diff --git a/autoninja b/autoninja
index bac7c3e611..50ec00d575 100755
--- a/autoninja
+++ b/autoninja
@@ -11,7 +11,9 @@ export AUTONINJA_BUILD_ID
 # Execute whatever is printed by autoninja.py.
 # Also print it to reassure that the right settings are being used.
 command=$(python "$(dirname -- "$0")/autoninja.py" "$@")
-echo "$command"
+if [ "$NINJA_SUMMARIZE_BUILD" == "1" ]; then
+  echo "$command"
+fi
 if eval "$command"; then
   if [ "$NINJA_SUMMARIZE_BUILD" == "1" ]; then
     python "$(dirname -- "$0")/post_build_ninja_summary.py" "$@"