diff --git a/arch/x86_64/kernel/x8664_ksyms.c b/arch/x86_64/kernel/x8664_ksyms.c
index d78f46056bda..fec4e521c01c 100644
--- a/arch/x86_64/kernel/x8664_ksyms.c
+++ b/arch/x86_64/kernel/x8664_ksyms.c
@@ -112,7 +112,6 @@ EXPORT_SYMBOL_GPL(unset_nmi_callback);
 #undef memcpy
 #undef memset
 #undef memmove
-#undef strlen
 
 extern void * memset(void *,int,__kernel_size_t);
 extern size_t strlen(const char *);
@@ -121,7 +120,6 @@ extern void * memcpy(void *,const void *,__kernel_size_t);
 extern void * __memcpy(void *,const void *,__kernel_size_t);
 
 EXPORT_SYMBOL(memset);
-EXPORT_SYMBOL(strlen);
 EXPORT_SYMBOL(strpbrk);
 EXPORT_SYMBOL(memmove);
 EXPORT_SYMBOL(memcpy);