diff --git a/man2/alloc_hugepages.2 b/man2/alloc_hugepages.2
index 07193c542..cc76fc495 100644
--- a/man2/alloc_hugepages.2
+++ b/man2/alloc_hugepages.2
@@ -27,11 +27,12 @@
 alloc_hugepages, free_hugepages \- allocate or free huge pages
 .SH SYNOPSIS
 .nf
-.BI "void *alloc_hugepages(int " key ", void *" addr ", size_t " len ,
-.BI "                      int " prot ", int " flag );
+.BI "void *syscall(SYS_alloc_hugepages, int " key ", void *" addr \
+", size_t " len ,
+.BI "              int " prot ", int " flag );
 .\" asmlinkage unsigned long sys_alloc_hugepages(int key, unsigned long addr,
 .\" unsigned long len, int prot, int flag);
-.BI "int free_hugepages(void *" addr );
+.BI "int syscall(SYS_free_hugepages, void *" addr );
 .\" asmlinkage int sys_free_hugepages(unsigned long addr);
 .fi
 .SH DESCRIPTION