diff --git a/src/core/libraries/kernel/threads/pthread.cpp b/src/core/libraries/kernel/threads/pthread.cpp
index e1c22bc55..0855c804e 100644
--- a/src/core/libraries/kernel/threads/pthread.cpp
+++ b/src/core/libraries/kernel/threads/pthread.cpp
@@ -337,7 +337,7 @@ void PS4_SYSV_ABI sched_yield() {
 }
 
 int PS4_SYSV_ABI posix_getpid() {
-#ifdef WIN32
+#ifdef _WIN32
     return GetCurrentProcessId();
 #else
     return getpid();