diff --git a/common/environment/configure/autoconf_cache/arm-linux b/common/environment/configure/autoconf_cache/arm-linux
index a0854837554..d74f06b9c89 100644
--- a/common/environment/configure/autoconf_cache/arm-linux
+++ b/common/environment/configure/autoconf_cache/arm-linux
@@ -1,7 +1,7 @@
 ac_cv_func_setvbuf_reversed=no
 ac_cv_sizeof___int64=${ac_cv_sizeof___int64=0}
 ac_cv_sizeof_char=${ac_cv_sizeof_char=1}
-ac_cv_sizeof_wchar_t=${ac_cv_sizeof_wchar_t=1}
+ac_cv_sizeof_wchar_t=${ac_cv_sizeof_wchar_t=4}
 ac_cv_sizeof_unsigned_char=${ac_cv_sizeof_unsigned_char=1}
 ac_cv_sizeof_bool=${ac_cv_sizeof_bool=1}
 ac_cv_sizeof_char_p=${ac_cv_sizeof_int_p=4}