diff --git a/tools/validate-all-json.sh b/tools/validate-all-json.sh
index e1d0b3c6a1..26d01ed227 100755
--- a/tools/validate-all-json.sh
+++ b/tools/validate-all-json.sh
@@ -3,6 +3,6 @@
 REAL_PATH=$(python -c "import os,sys;print os.path.realpath('$0')")
 cd "$(dirname "$REAL_PATH")/.."
 
-find . -name '*.json' -print0 |
+find . -path ./.tox -prune -name '*.json' -print0 |
     xargs -0 python tools/validate-json.py || exit 1