diff --git a/nshlib/nsh_proccmds.c b/nshlib/nsh_proccmds.c
index ff168c692..1904688bb 100644
--- a/nshlib/nsh_proccmds.c
+++ b/nshlib/nsh_proccmds.c
@@ -463,7 +463,7 @@ static int ps_callback(FAR struct nsh_vtbl_s *vtbl, FAR const char *dirpath,
 
   /* Additionally print a "!" if the stack is filled more than 80% */
 
-#ifndef LIBC_FLOATINGPOINT
+#ifndef CONFIG_LIBC_FLOATINGPOINT
   nsh_output(vtbl, "%5d%%%s ", (int)stack_filled, (stack_filled >= 80 ? "!" : " "));
 #else
   nsh_output(vtbl, "%5.1f%%%s ", (double)stack_filled, (stack_filled >= 80 ? "!" : " "));