diff --git a/src/routes/api/sql.js b/src/routes/api/sql.js
index 1c853f365..9dec60aff 100644
--- a/src/routes/api/sql.js
+++ b/src/routes/api/sql.js
@@ -33,6 +33,12 @@ function execute(req) {
         for (let query of queries) {
             query = query.trim();
 
+            while (query.startsWith('-- ') {
+                // Query starts with one or more SQL comments, discard these before we execute.
+                const pivot = query.indexOf('\n');
+                query = pivot > 0 ? query.substr(pivot + 1).trim() : "";
+            }
+            
             if (!query) {
                 continue;
             }