diff --git a/src/core/libraries/kernel/threads/pthread_attr.cpp b/src/core/libraries/kernel/threads/pthread_attr.cpp
index 26946cfb9..8c61922f4 100644
--- a/src/core/libraries/kernel/threads/pthread_attr.cpp
+++ b/src/core/libraries/kernel/threads/pthread_attr.cpp
@@ -289,8 +289,12 @@ int PS4_SYSV_ABI scePthreadAttrSetaffinity(PthreadAttrT* attr, const u64 mask) {
 void RegisterThreadAttr(Core::Loader::SymbolsResolver* sym) {
     // Posix
     LIB_FUNCTION("wtkt-teR1so", "libScePosix", 1, "libkernel", 1, 1, posix_pthread_attr_init);
+    LIB_FUNCTION("vQm4fDEsWi8", "libScePosix", 1, "libkernel", 1, 1,
+                 posix_pthread_attr_getstack);
     LIB_FUNCTION("2Q0z6rnBrTE", "libScePosix", 1, "libkernel", 1, 1,
                  posix_pthread_attr_setstacksize);
+    LIB_FUNCTION("Ucsu-OK+els", "libScePosix", 1, "libkernel", 1, 1,
+                 posix_pthread_attr_get_np);
     LIB_FUNCTION("RtLRV-pBTTY", "libScePosix", 1, "libkernel", 1, 1,
                  posix_pthread_attr_getschedpolicy);
     LIB_FUNCTION("JarMIy8kKEY", "libkernel", 1, "libkernel", 1, 1,