diff --git a/src/core/libraries/kernel/threads/condvar.cpp b/src/core/libraries/kernel/threads/condvar.cpp
index 853526559..f296160bf 100644
--- a/src/core/libraries/kernel/threads/condvar.cpp
+++ b/src/core/libraries/kernel/threads/condvar.cpp
@@ -347,8 +347,11 @@ void RegisterCond(Core::Loader::SymbolsResolver* sym) {
     LIB_FUNCTION("mkx2fVhNMsg", "libScePosix", 1, "libkernel", 1, 1, posix_pthread_cond_broadcast);
 
     // Posix-Kernel
+    LIB_FUNCTION("0TyVk4MSLt0", "libkernel", 1, "libkernel", 1, 1, posix_pthread_cond_init);
     LIB_FUNCTION("Op8TBGY5KHg", "libkernel", 1, "libkernel", 1, 1, posix_pthread_cond_wait);
     LIB_FUNCTION("mkx2fVhNMsg", "libkernel", 1, "libkernel", 1, 1, posix_pthread_cond_broadcast);
+    LIB_FUNCTION("mKoTx03HRWA", "libkernel", 1, "libkernel", 1, 1, posix_pthread_condattr_init);
+    LIB_FUNCTION("dJcuQVn6-Iw", "libkernel", 1, "libkernel", 1, 1, posix_pthread_condattr_destroy);
 
     // Orbis
     LIB_FUNCTION("2Tb92quprl0", "libkernel", 1, "libkernel", 1, 1, ORBIS(scePthreadCondInit));
diff --git a/src/core/libraries/kernel/threads/mutex.cpp b/src/core/libraries/kernel/threads/mutex.cpp
index 4f11e32da..38041df71 100644
--- a/src/core/libraries/kernel/threads/mutex.cpp
+++ b/src/core/libraries/kernel/threads/mutex.cpp
@@ -438,6 +438,10 @@ void RegisterMutex(Core::Loader::SymbolsResolver* sym) {
     LIB_FUNCTION("K-jXhbt2gn4", "libScePosix", 1, "libkernel", 1, 1, posix_pthread_mutex_trylock);
 
     // Posix-Kernel
+    LIB_FUNCTION("ttHNfU+qDBU", "libkernel", 1, "libkernel", 1, 1, posix_pthread_mutex_init);
+    LIB_FUNCTION("dQHWEsJtoE4", "libkernel", 1, "libkernel", 1, 1, posix_pthread_mutexattr_init);
+    LIB_FUNCTION("mDmgMOGVUqg", "libkernel", 1, "libkernel", 1, 1,
+                 posix_pthread_mutexattr_settype);
     LIB_FUNCTION("7H0iTOciTLo", "libkernel", 1, "libkernel", 1, 1, posix_pthread_mutex_lock);
     LIB_FUNCTION("2Z+PpY6CaJg", "libkernel", 1, "libkernel", 1, 1, posix_pthread_mutex_unlock);
 
diff --git a/src/core/libraries/kernel/threads/pthread.cpp b/src/core/libraries/kernel/threads/pthread.cpp
index 639ed1611..641fbe10d 100644
--- a/src/core/libraries/kernel/threads/pthread.cpp
+++ b/src/core/libraries/kernel/threads/pthread.cpp
@@ -538,6 +538,7 @@ void RegisterThread(Core::Loader::SymbolsResolver* sym) {
     LIB_FUNCTION("6XG4B33N09g", "libScePosix", 1, "libkernel", 1, 1, sched_yield);
 
     // Posix-Kernel
+    LIB_FUNCTION("Z4QosVuAsA0", "libkernel", 1, "libkernel", 1, 1, posix_pthread_once);
     LIB_FUNCTION("EotR8a3ASf4", "libkernel", 1, "libkernel", 1, 1, posix_pthread_self);
     LIB_FUNCTION("OxhIB8LB-PQ", "libkernel", 1, "libkernel", 1, 1, posix_pthread_create);