diff --git a/cgo.md b/cgo.md
index 48fd299..9373ae8 100644
--- a/cgo.md
+++ b/cgo.md
@@ -130,7 +130,7 @@
 ```console
 $ gcc -c clibrary.c
 $ ar cru libclibrary.a clibrary.o
-$ go build ccallbacks
+$ go build
 $ ./ccallbacks
 Go.main(): calling C function with callback to us
 C.some_c_func(): calling callback with arg = 2