diff --git a/rpcs3/Emu/Cell/Modules/sceNp.cpp b/rpcs3/Emu/Cell/Modules/sceNp.cpp
index 9508641301..4e47640b07 100644
--- a/rpcs3/Emu/Cell/Modules/sceNp.cpp
+++ b/rpcs3/Emu/Cell/Modules/sceNp.cpp
@@ -321,6 +321,11 @@ void fmt_class_string<SceNpError>::format(std::string& out, u64 arg)
 			STR_CASE(SCE_NP_CORE_ERROR_GETHOSTBYNAME);
 			STR_CASE(SCE_NP_CORE_ERROR_UNDEFINED_STREAM_ERROR);
 			STR_CASE(SCE_NP_CORE_ERROR_INTERNAL);
+			STR_CASE(SCE_NP_CORE_ERROR_DNS_HOST_NOT_FOUND);
+			STR_CASE(SCE_NP_CORE_ERROR_DNS_TRY_AGAIN);
+			STR_CASE(SCE_NP_CORE_ERROR_DNS_NO_RECOVERY);
+			STR_CASE(SCE_NP_CORE_ERROR_DNS_NO_DATA);
+			STR_CASE(SCE_NP_CORE_ERROR_DNS_NO_ADDRESS);
 			STR_CASE(SCE_NP_CORE_SERVER_ERROR_CONFLICT);
 			STR_CASE(SCE_NP_CORE_SERVER_ERROR_NOT_AUTHORIZED);
 			STR_CASE(SCE_NP_CORE_SERVER_ERROR_REMOTE_CONNECTION_FAILED);