diff --git a/scripts/wp-search-replace.sh b/scripts/wp-search-replace.sh
index b48b5d4..89d79e4 100644
--- a/scripts/wp-search-replace.sh
+++ b/scripts/wp-search-replace.sh
@@ -264,7 +264,7 @@ if [[ -f "$CONFIG_FILE" && -w "$CONFIG_FILE" ]]; then
             INSERT_BLOCK+="define( 'WP_SITEURL', '${TARGET_URL}' );\n"
         fi
         if [[ $needs_http_host -eq 1 ]]; then
-            INSERT_BLOCK+="if ( defined( 'WP_CLI' ) && WP_CLI && ! isset( $_SERVER['HTTP_HOST'] ) ) { $_SERVER['HTTP_HOST'] = '${HOST_ONLY}'; }\n"
+            INSERT_BLOCK+="if ( defined( 'WP_CLI' ) && WP_CLI && ! isset( \$_SERVER['HTTP_HOST'] ) ) { \$_SERVER['HTTP_HOST'] = '${HOST_ONLY}'; }\n"
         fi
 
         awk -v block="$INSERT_BLOCK" '