diff --git a/clang/test/AST/Interp/floats.cpp b/clang/test/AST/Interp/floats.cpp
index e55df6814b71d..79e501b19a0ab 100644
--- a/clang/test/AST/Interp/floats.cpp
+++ b/clang/test/AST/Interp/floats.cpp
@@ -150,7 +150,7 @@ namespace LongDouble {
 
     return L;
   };
-  static_assert(f() == __LDBL_MAX__);
+  static_assert(f() == __LDBL_MAX__, "");
 
 #ifdef __FLOAT128__
   constexpr __float128 f128() {
@@ -158,7 +158,7 @@ namespace LongDouble {
 
     return L;
   };
-  static_assert(f128() == __LDBL_MAX__);
+  static_assert(f128() == __LDBL_MAX__, "");
 #endif
 }