diff --git a/lib/index.js b/lib/index.js
index 14519ed..4327433 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -3,6 +3,8 @@ const Pool = require("pg-pool"),
 
 let databaseUrl = process.env.DATABASE_URL
 
+let logSql = process.env.LOG_SQL
+
 if (!databaseUrl) {
   throw new Error("Environment variable is not set");
 }
@@ -25,7 +27,9 @@ let pool = new Pool(config);
 
 let query = (text, values_in) => {
   let values = values_in || [];
-  console.log("SQL: " + text + " with values " + values.join(","));
+  if (logSql){
+    console.log("SQL: " + text + " with values " + values.join(","));
+  }
   return pool.query(text, values)
 };