diff --git a/libc-top-half/CMakeLists.txt b/libc-top-half/CMakeLists.txt
index 39c175b51..d9cb93266 100644
--- a/libc-top-half/CMakeLists.txt
+++ b/libc-top-half/CMakeLists.txt
@@ -448,7 +448,7 @@ if (NOT (WASI STREQUAL "p1"))
   )
 endif()
 
-if (TARGET_TRIPLE MATCHES "wasip1-threads")
+if (TARGET_TRIPLE MATCHES "wasi(p1)?-threads")
   # pthreads functions needed for actual thread support
   list(APPEND top_half_sources
     musl/src/thread/wasi-threads/futex.c