diff --git a/deps/v8/src/base/platform/platform-posix.cc b/deps/v8/src/base/platform/platform-posix.cc
index 64aed2b8d1f2d0..2cb3bbefd2cd21 100644
--- a/deps/v8/src/base/platform/platform-posix.cc
+++ b/deps/v8/src/base/platform/platform-posix.cc
@@ -260,6 +260,8 @@ int OS::GetCurrentThreadId() {
   return static_cast<int>(syscall(__NR_gettid));
 #elif V8_OS_ANDROID
   return static_cast<int>(gettid());
+#elif V8_OS_SOLARIS
+  return static_cast<int>(pthread_self());
 #else
   return static_cast<int>(reinterpret_cast<intptr_t>(pthread_self()));
 #endif