diff --git a/modules/compiler_vm/languages/c11.pm b/modules/compiler_vm/languages/c11.pm
index 437a3899..109fb558 100755
--- a/modules/compiler_vm/languages/c11.pm
+++ b/modules/compiler_vm/languages/c11.pm
@@ -11,7 +11,7 @@ sub initialize {
 
   $self->{sourcefile}      = 'prog.c';
   $self->{execfile}        = 'prog';
-  $self->{default_options} = '-Wextra -Wall -Wno-unused -pedantic -Wfloat-equal -Wshadow -std=c11 -lm -Wfatal-errors -fsanitize=bounds -fsanitize=alignment -fsanitize=undefined';
+  $self->{default_options} = '-Wextra -Wall -Wno-unused -pedantic -Wfloat-equal -Wshadow -std=c11 -lm -Wfatal-errors -fsanitize=alignment,undefined';
   $self->{options_paste}   = '-fdiagnostics-show-caret';
   $self->{options_nopaste} = '-fno-diagnostics-show-caret';
   $self->{cmdline}         = 'gcc -ggdb -g3 $sourcefile $options -o $execfile';
@@ -22,11 +22,8 @@ sub initialize {
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
-#include <unistd.h>
 #include <math.h>
 #include <limits.h>
-#include <sys/types.h>
-#include <stdint.h>
 #include <stdbool.h>
 #include <stddef.h>
 #include <stdarg.h>
@@ -48,6 +45,9 @@ sub initialize {
 #include <iso646.h>
 #include <signal.h>
 #include <uchar.h>
+#include <stdint.h>
+#include <unistd.h>
+#include <sys/types.h>
 #include <prelude.h>
 
 END