diff --git a/clang/test/Modules/Inputs/System/usr/include/stdint.h b/clang/test/Modules/Inputs/System/usr/include/stdint.h
index e3592fe359a4a..209d54cd411ad 100644
--- a/clang/test/Modules/Inputs/System/usr/include/stdint.h
+++ b/clang/test/Modules/Inputs/System/usr/include/stdint.h
@@ -30,6 +30,7 @@ typedef unsigned int uintmax_t;
 
 // additional types for unwind.h
 
+typedef unsigned int uint32_t;
 typedef unsigned long long uint64_t;
 
 #endif /* STDINT_H */