diff --git a/libs/libc/unistd/lib_sysconf.c b/libs/libc/unistd/lib_sysconf.c
index 7a9df35408..aab4950ef8 100644
--- a/libs/libc/unistd/lib_sysconf.c
+++ b/libs/libc/unistd/lib_sysconf.c
@@ -33,7 +33,7 @@
 #ifdef CONFIG_MM_PGSIZE
 #  define DEFAULT_MM_PGSIZE CONFIG_MM_PGSIZE
 #else
-#  define DEFAULT_MM_PGSIZE 4096
+#  define DEFAULT_MM_PGSIZE CONFIG_PTHREAD_STACK_MIN
 #endif
 
 /****************************************************************************
@@ -246,6 +246,9 @@ long sysconf(int name)
       case _SC_PAGESIZE:
         return DEFAULT_MM_PGSIZE;
 
+      case _SC_THREAD_STACK_MIN:
+        return CONFIG_PTHREAD_STACK_MIN;
+
       default:
 #if 0 /* Assume valid but not implemented for the time being */
         errcode = EINVAL;