diff --git a/main.go b/main.go
index bdbe8d4..e9472ae 100644
--- a/main.go
+++ b/main.go
@@ -46,7 +46,7 @@ import (
 )
 
 // modified while building by -ldflags.
-var version = "unkown"
+var version = "unknown"
 
 func usage() {
 	fmt.Fprintf(os.Stderr, "usage: embedmd [flags] [path ...]\n")