diff --git a/bootstrap.sh b/bootstrap.sh
index 406fa23..55bb20e 100755
--- a/bootstrap.sh
+++ b/bootstrap.sh
@@ -622,7 +622,7 @@
 
     # workarond isolated and not fully bootstraped environments
     if [[ $RECLASS_IGNORE_CLASS_NOTFOUND =~ ^(True|true|1|yes)$ ]]; then
-      SALT_MASTER_PILLAR='"salt":{"master":{"pillar":{"reclass":{"ignore_class_notfound": "\'${RECLASS_IGNORE_CLASS_NOTFOUND:-False}\'", "ignore_class_regexp": ["service.*"]}}}},'
+      SALT_MASTER_PILLAR='"salt":{"master":{"pillar":{"reclass":{"ignore_class_notfound": "\\'${RECLASS_IGNORE_CLASS_NOTFOUND:-False}\\'", "ignore_class_regexp": ["service.*"]}}}},'
     fi
     PILLAR='{${SALT_MASTER_PILLAR} "reclass":{"storage":{"data_source":{"engine":"local"}}} }'