diff --git a/complete.go b/complete.go
index 56009fb..301b051 100644
--- a/complete.go
+++ b/complete.go
@@ -69,6 +69,8 @@ func binaryComplete(query, ctx string, fields []string) ([]string, string) {
 		}
 	}
 
+	completions = removeDupes(completions)
+
 	return completions, query
 }
 
diff --git a/main.go b/main.go
index af7f0b8..b20cdb7 100644
--- a/main.go
+++ b/main.go
@@ -268,3 +268,16 @@ func expandHome(path string) string {
 
 	return strings.Replace(defaultHistDir, "~", homedir, 1)
 }
+
+func removeDupes(slice []string) []string {
+	all := make(map[string]bool)
+	newSlice := []string{}
+	for _, item := range slice {
+		if _, val := all[item]; !val {
+			all[item] = true
+			newSlice = append(newSlice, item)
+		}
+	}
+
+	return newSlice
+}