diff --git a/cmake/sdlchecks.cmake b/cmake/sdlchecks.cmake
index ac36cfa2d7..ea4c0ff430 100644
--- a/cmake/sdlchecks.cmake
+++ b/cmake/sdlchecks.cmake
@@ -966,7 +966,7 @@ macro(CheckPTHREAD)
       if(CMAKE_C_COMPILER_ID MATCHES "SunPro")
         set(PTHREAD_LDFLAGS "-mt -lpthread")
       else()
-        set(PTHREAD_LDFLAGS "-pthread -lposix4")
+        set(PTHREAD_LDFLAGS "-pthread")
       endif()
     elseif(SYSV5)
       set(PTHREAD_CFLAGS "-D_REENTRANT -Kthread")