diff --git a/doc/install-source.html b/doc/install-source.html
index 4ed9487504..1928b0ba9b 100644
--- a/doc/install-source.html
+++ b/doc/install-source.html
@@ -307,7 +307,7 @@ package main
 import "fmt"
 
 func main() {
-    fmt.Printf("hello, world\n")
+	fmt.Printf("hello, world\n")
 }
 </pre>
 
diff --git a/doc/install.html b/doc/install.html
index 79ae9664c8..cd9abcc57d 100644
--- a/doc/install.html
+++ b/doc/install.html
@@ -242,7 +242,7 @@ package main
 import "fmt"
 
 func main() {
-    fmt.Printf("hello, world\n")
+	fmt.Printf("hello, world\n")
 }
 </pre>