diff --git a/Sources/Plasma/NucleusLib/pnAsyncCoreExe/pnAceThread.cpp b/Sources/Plasma/NucleusLib/pnAsyncCoreExe/pnAceThread.cpp
index 5eeec9e39a..8e0834235b 100644
--- a/Sources/Plasma/NucleusLib/pnAsyncCoreExe/pnAceThread.cpp
+++ b/Sources/Plasma/NucleusLib/pnAsyncCoreExe/pnAceThread.cpp
@@ -47,11 +47,6 @@ You can contact Cyan Worlds, Inc. by email legal@cyan.com
 
 #include "Pch.h"
 
-#if defined(HAVE_PTHREAD_TIMEDJOIN_NP)
-#include <pthread.h>
-#include <time.h>
-#endif
-
 static void CreateThreadProc(AsyncThreadRef thread)
 {
 #ifdef USE_VLD
diff --git a/cmake/CompilerChecks.cmake b/cmake/CompilerChecks.cmake
index 72990175e8..a710eab05b 100644
--- a/cmake/CompilerChecks.cmake
+++ b/cmake/CompilerChecks.cmake
@@ -11,10 +11,6 @@ if(NOT DEFINED CMAKE_INTERPROCEDURAL_OPTIMIZATION)
     endif()
 endif()
 
-try_compile(HAVE_PTHREAD_TIMEDJOIN_NP ${PROJECT_BINARY_DIR}
-            ${PROJECT_SOURCE_DIR}/cmake/check_pthread_timedjoin_np.cpp
-            LINK_LIBRARIES Threads::Threads)
-
 # Check for Linux sysinfo.
 include(CheckCXXSymbolExists)
 check_cxx_symbol_exists("sysinfo" "sys/sysinfo.h" HAVE_SYSINFO)
diff --git a/cmake/check_pthread_timedjoin_np.cpp b/cmake/check_pthread_timedjoin_np.cpp
deleted file mode 100644
index f0c90bb266..0000000000
--- a/cmake/check_pthread_timedjoin_np.cpp
+++ /dev/null
@@ -1,9 +0,0 @@
-#include <pthread.h>
-#include <time.h>
-
-int main()
-{
-    pthread_t thread;
-    struct timespec ts{};
-    return pthread_timedjoin_np(thread, nullptr, &ts);
-}
diff --git a/cmake/hsConfig.h.cmake b/cmake/hsConfig.h.cmake
index 06c2d3067f..19d66b4145 100644
--- a/cmake/hsConfig.h.cmake
+++ b/cmake/hsConfig.h.cmake
@@ -63,7 +63,6 @@ You can contact Cyan Worlds, Inc. by email legal@cyan.com
 #cmakedefine USE_VPX
 #cmakedefine USE_WEBM
 
-#cmakedefine HAVE_PTHREAD_TIMEDJOIN_NP
 #cmakedefine HAVE_SYSCTL
 #cmakedefine HAVE_SYSDIR
 #cmakedefine HAVE_SYSINFO