diff --git a/src/models/options.ts b/src/models/options.ts
index 642250f..1db96d9 100644
--- a/src/models/options.ts
+++ b/src/models/options.ts
@@ -94,7 +94,7 @@ export class Options {
 
     // check each condition and return false if something goes wrong
     for (let [conditionIdx, metric] of icon.metrics.entries()) {
-      const value = this.getLastValueFromMetrics(metric, `Icon ${iconIdx + 1}, Condition ${conditionIdx}`);
+      const value = this.getLastValueFromMetrics(metric, `Icon ${iconIdx + 1}, Condition ${conditionIdx + 1}`);
       if(value === null || value === undefined) {
         // TODO: may be throw an error
         return false;