diff --git a/man3/printf.3 b/man3/printf.3
index b3781884d..cb59b00c5 100644
--- a/man3/printf.3
+++ b/man3/printf.3
@@ -974,7 +974,7 @@ one might obtain `Sonntag, 3. Juli, 10:02'.
 .PP
 To allocate a sufficiently large string and print into it
 (code correct for both glibc 2.0 and glibc 2.1):
-.RS
+.RS 4
 .nf
 
 #include <stdio.h>