diff --git a/clang/lib/AST/ByteCode/Interp.cpp b/clang/lib/AST/ByteCode/Interp.cpp
index 58bbf4aaf5f8..46d161e60470 100644
--- a/clang/lib/AST/ByteCode/Interp.cpp
+++ b/clang/lib/AST/ByteCode/Interp.cpp
@@ -39,9 +39,10 @@ using namespace clang::interp;
 // On MSVC, musttail does not guarantee tail calls in debug mode.
 // We disable it on MSVC generally since it doesn't seem to be able
 // to handle the way we use tailcalls.
-// PPC can't tail-call external calls, which is a problem for InterpNext.
+// MIPS and PPC can't tail-call external calls, which is a problem for
+// InterpNext.
 #if defined(_MSC_VER) || defined(__powerpc__) || !defined(MUSTTAIL) ||         \
-    defined(__i386__) || defined(__sparc__)
+    defined(__i386__) || defined(__sparc__) || defined(__mips__)
 #undef MUSTTAIL
 #define MUSTTAIL
 #define USE_TAILCALLS 0