diff --git a/doc/langref.html.in b/doc/langref.html.in
index 1a0d531b591faabdac3d75367ababda8eafcfa6d..d1c14d15f744c99e4cf6c951bdaed77ac0ba7f3b 100644
--- a/doc/langref.html.in
+++ b/doc/langref.html.in
@@ -1119,6 +1119,10 @@
       otherwise the optimizer figures out all the values at compile-time,
       which operates in strict mode.</p>
       {#code|float_mode_exe.zig#}
+      {#shell_samp#}$ zig build-exe float_mode_exe.zig float_mode_obj.o -O fast
+$ ./float_mode_exe
+optimized = 0.001
+strict = 0.0009765625{#end_shell_samp#}
 
       {#see_also|@setFloatMode|Division by Zero#}
       {#header_close#}