diff --git a/04-statements-expressions-comments/exercises/06-use-godoc/solution/solution.md b/04-statements-expressions-comments/exercises/06-use-godoc/solution/solution.md
index bd2fb64..6cf0d72 100644
--- a/04-statements-expressions-comments/exercises/06-use-godoc/solution/solution.md
+++ b/04-statements-expressions-comments/exercises/06-use-godoc/solution/solution.md
@@ -4,4 +4,4 @@
 
 ## SOURCE CODE:
 
-  godoc -src runtime NumCPU
+  go doc -src runtime NumCPU