diff --git a/core/libs/prx/libSceCustomMusicSysCallWrapper/Export.cpp b/core/libs/prx/libSceCustomMusicSysCallWrapper/Export.cpp
index d6510097ff..30750a5fc3 100644
--- a/core/libs/prx/libSceCustomMusicSysCallWrapper/Export.cpp
+++ b/core/libs/prx/libSceCustomMusicSysCallWrapper/Export.cpp
@@ -8,6 +8,26 @@
 
 extern "C" {
 
+int APS5_VABI sceCustomMusicNetInetNtop() {
+    NotImplemented_nid_no_patch(__func__);
+}
+
+int APS5_VABI sceCustomMusicNetShutdown() {
+    NotImplemented_nid_no_patch(__func__);
+}
+
+int APS5_VABI sceCustomMusicNetSocketAbort() {
+    NotImplemented_nid_no_patch(__func__);
+}
+
+int APS5_VABI sceCustomMusicPthreadAttrGet() {
+    NotImplemented_nid_no_patch(__func__);
+}
+
+int APS5_VABI sceCustomMusicPthreadSelf() {
+    NotImplemented_nid_no_patch(__func__);
+}
+
 int APS5_VABI sceCustomMusicSelect() {
     NotImplemented_nid_no_patch(__func__);
     return 0;
diff --git a/core/libs/prx/libSceCustomMusicSysCallWrapper/include/Api.hpp b/core/libs/prx/libSceCustomMusicSysCallWrapper/include/Api.hpp
index 63ad57d532..c6ace1453b 100644
--- a/core/libs/prx/libSceCustomMusicSysCallWrapper/include/Api.hpp
+++ b/core/libs/prx/libSceCustomMusicSysCallWrapper/include/Api.hpp
@@ -4,6 +4,11 @@
 
 extern "C" {
 
+int APS5_VABI sceCustomMusicNetInetNtop();
+int APS5_VABI sceCustomMusicNetShutdown();
+int APS5_VABI sceCustomMusicNetSocketAbort();
+int APS5_VABI sceCustomMusicPthreadAttrGet();
+int APS5_VABI sceCustomMusicPthreadSelf();
 int APS5_VABI sceCustomMusicSelect();
 
 }
diff --git a/docs/dev/debt/libSceCustomMusicSysCallWrapper.md b/docs/dev/debt/libSceCustomMusicSysCallWrapper.md
index 4060a08088..525a5deb5f 100644
--- a/docs/dev/debt/libSceCustomMusicSysCallWrapper.md
+++ b/docs/dev/debt/libSceCustomMusicSysCallWrapper.md
@@ -113,3 +113,9 @@
 ### Unknown function info
 
 - [sceCustomMusicSelect](../../../core/libs/prx/libSceCustomMusicSysCallWrapper/Export.cpp) (libSceCustomMusicSysCallWrapper) - the name and NID are present in the [PS5 3.20 export inventory](https://github.com/DNNDHH/PS5-3.20_Libs/blob/b2a77c09cd71c01f34c790cfbe98c751a13262ad/libSceCustomMusicSysCallWrapper.c), but no credible prototypes were found. The declarations have no parameters solely to resolve known imports; this is not an ABI claim and callers must not call them until signatures are verified
+
+- [sceCustomMusicNetInetNtop](../../../core/libs/prx/libSceCustomMusicSysCallWrapper/Export.cpp) - signature and behavior are unknown; the parameterless int declaration is an import-resolution placeholder and throws.
+- [sceCustomMusicNetShutdown](../../../core/libs/prx/libSceCustomMusicSysCallWrapper/Export.cpp) - signature and behavior are unknown; the parameterless int declaration is an import-resolution placeholder and throws.
+- [sceCustomMusicNetSocketAbort](../../../core/libs/prx/libSceCustomMusicSysCallWrapper/Export.cpp) - signature and behavior are unknown; the parameterless int declaration is an import-resolution placeholder and throws.
+- [sceCustomMusicPthreadAttrGet](../../../core/libs/prx/libSceCustomMusicSysCallWrapper/Export.cpp) - signature and behavior are unknown; the parameterless int declaration is an import-resolution placeholder and throws.
+- [sceCustomMusicPthreadSelf](../../../core/libs/prx/libSceCustomMusicSysCallWrapper/Export.cpp) - signature and behavior are unknown; the parameterless int declaration is an import-resolution placeholder and throws.