diff --git a/executer/include/uprotocol.h b/executer/include/uprotocol.h
index 47540578..87b53892 100644
--- a/executer/include/uprotocol.h
+++ b/executer/include/uprotocol.h
@@ -79,6 +79,7 @@ struct program_load_desc {
 	unsigned long at_phent;
 	unsigned long at_phnum;
 	unsigned long at_entry;
+	unsigned long at_clktck;
 	char *args;
 	unsigned long args_len;
 	char *envs;
diff --git a/executer/user/mcexec.c b/executer/user/mcexec.c
index 96525e5a..500cde0d 100644
--- a/executer/user/mcexec.c
+++ b/executer/user/mcexec.c
@@ -221,6 +221,7 @@ struct program_load_desc *load_elf(FILE *fp, char **interp_pathp)
 	desc->at_phent = sizeof(phdr);
 	desc->at_phnum = hdr.e_phnum;
 	desc->at_entry = hdr.e_entry;
+	desc->at_clktck = sysconf(_SC_CLK_TCK);
 
 	return desc;
 }
diff --git a/kernel/include/syscall.h b/kernel/include/syscall.h
index 1eea16fb..055346b2 100644
--- a/kernel/include/syscall.h
+++ b/kernel/include/syscall.h
@@ -119,6 +119,7 @@ struct program_load_desc {
 	unsigned long at_phent;
 	unsigned long at_phnum;
 	unsigned long at_entry;
+	unsigned long at_clktck;
 	char *args;
 	unsigned long args_len;
 	char *envs;
diff --git a/kernel/process.c b/kernel/process.c
index 13f820fb..aa9b852e 100644
--- a/kernel/process.c
+++ b/kernel/process.c
@@ -1396,6 +1396,8 @@ int init_process_stack(struct process *process, struct program_load_desc *pn,
 	p[s_ind--] = AT_PHDR;	
 	p[s_ind--] = 4096; /* AT_PAGESZ */
 	p[s_ind--] = AT_PAGESZ;
+	p[s_ind--] = pn->at_clktck; /* AT_CLKTCK */
+	p[s_ind--] = AT_CLKTCK;
 	p[s_ind--] = 0;     /* envp terminating NULL */
 	/* envp */
 	for (arg_ind = envc - 1; arg_ind > -1; --arg_ind) {