diff --git a/prometheus/collector.go b/prometheus/collector.go
index c0d70b2..1e83965 100644
--- a/prometheus/collector.go
+++ b/prometheus/collector.go
@@ -79,7 +79,7 @@ type Collector interface {
 // of the Describe method. If a Collector sometimes collects no metrics at all
 // (for example vectors like CounterVec, GaugeVec, etc., which only collect
 // metrics after a metric with a fully specified label set has been accessed),
-// it might even get registered as an unchecked Collecter (cf. the Register
+// it might even get registered as an unchecked Collector (cf. the Register
 // method of the Registerer interface). Hence, only use this shortcut
 // implementation of Describe if you are certain to fulfill the contract.
 //