diff --git a/libunwind/src/CMakeLists.txt b/libunwind/src/CMakeLists.txt
index 452d988c3726b..abb019b88ebab 100644
--- a/libunwind/src/CMakeLists.txt
+++ b/libunwind/src/CMakeLists.txt
@@ -16,6 +16,7 @@ set(LIBUNWIND_C_SOURCES
     UnwindLevel1.c
     UnwindLevel1-gcc-ext.c
     Unwind-sjlj.c
+    Unwind-wasm.c
     )
 set_source_files_properties(${LIBUNWIND_C_SOURCES}
                             PROPERTIES
diff --git a/libunwind/src/Unwind-wasm.c b/libunwind/src/Unwind-wasm.c
index 35f2f9aeab080..f7f39d38b59c1 100644
--- a/libunwind/src/Unwind-wasm.c
+++ b/libunwind/src/Unwind-wasm.c
@@ -10,13 +10,15 @@
 //
 //===----------------------------------------------------------------------===//
 
-#include "config.h"
-#include "unwind.h"
 #include <stdbool.h>
-#include <threads.h>
+
+#include "config.h"
 
 #ifdef __USING_WASM_EXCEPTIONS__
 
+#include "unwind.h"
+#include <threads.h>
+
 _Unwind_Reason_Code __gxx_personality_wasm0(int version, _Unwind_Action actions,
                                             uint64_t exceptionClass,
                                             _Unwind_Exception *unwind_exception,
@@ -118,4 +120,4 @@ _Unwind_GetRegionStart(struct _Unwind_Context *context) {
   return 0;
 }
 
-#endif
+#endif // defined(__USING_WASM_EXCEPTIONS__)