diff --git a/clang/include/clang/AST/JSONNodeDumper.h b/clang/include/clang/AST/JSONNodeDumper.h
index 03c903069ad87..0ce272df8df65 100644
--- a/clang/include/clang/AST/JSONNodeDumper.h
+++ b/clang/include/clang/AST/JSONNodeDumper.h
@@ -214,6 +214,7 @@ class JSONNodeDumper
   void VisitUnavailableAttr(const UnavailableAttr *UA);
   void VisitSectionAttr(const SectionAttr *SA);
   void VisitVisibilityAttr(const VisibilityAttr *VA);
+  void VisitTLSModelAttr(const TLSModelAttr *TA);
 
   void VisitTypedefType(const TypedefType *TT);
   void VisitUsingType(const UsingType *TT);
diff --git a/clang/lib/AST/JSONNodeDumper.cpp b/clang/lib/AST/JSONNodeDumper.cpp
index 134938a1ef19a..139dfce41e914 100644
--- a/clang/lib/AST/JSONNodeDumper.cpp
+++ b/clang/lib/AST/JSONNodeDumper.cpp
@@ -559,6 +559,10 @@ void JSONNodeDumper::VisitVisibilityAttr(const VisibilityAttr *VA) {
                                   VA->getVisibility()));
 }
 
+void JSONNodeDumper::VisitTLSModelAttr(const TLSModelAttr *TA) {
+  JOS.attribute("tls_model", TA->getModel());
+}
+
 void JSONNodeDumper::VisitTypedefType(const TypedefType *TT) {
   JOS.attribute("decl", createBareDeclRef(TT->getDecl()));
   if (!TT->typeMatchesDecl())
diff --git a/clang/test/AST/ast-dump-attr-json.cpp b/clang/test/AST/ast-dump-attr-json.cpp
index 0eb930b851a15..24a5ff0888787 100644
--- a/clang/test/AST/ast-dump-attr-json.cpp
+++ b/clang/test/AST/ast-dump-attr-json.cpp
@@ -19,6 +19,7 @@ __attribute__ ((section ("SECTION_NAME"))) int section_var;
 
 __attribute__ ((visibility ("hidden"))) int visibility_var;
 
+__thread __attribute__ ((tls_model ("local-exec"))) int tls_model_var;
 
 // NOTE: CHECK lines have been autogenerated by gen_ast_dump_json_test.py
 // using --filters=VarDecl
@@ -479,3 +480,51 @@ __attribute__ ((visibility ("hidden"))) int visibility_var;
 // CHECK-NEXT:   }
 // CHECK-NEXT:  ]
 // CHECK-NEXT: }
+
+
+// CHECK-NOT: {{^}}Dumping
+// CHECK:  "kind": "VarDecl",
+// CHECK-NEXT:  "loc": {
+// CHECK-NEXT:   "offset": 724,
+// CHECK-NEXT:   "line": 22,
+// CHECK-NEXT:   "col": 57,
+// CHECK-NEXT:   "tokLen": 13
+// CHECK-NEXT:  },
+// CHECK-NEXT:  "range": {
+// CHECK-NEXT:   "begin": {
+// CHECK-NEXT:    "offset": 668,
+// CHECK-NEXT:    "col": 1,
+// CHECK-NEXT:    "tokLen": 8
+// CHECK-NEXT:   },
+// CHECK-NEXT:   "end": {
+// CHECK-NEXT:    "offset": 724,
+// CHECK-NEXT:    "col": 57,
+// CHECK-NEXT:    "tokLen": 13
+// CHECK-NEXT:   }
+// CHECK-NEXT:  },
+// CHECK-NEXT:  "name": "tls_model_var",
+// CHECK-NEXT:  "mangledName": "tls_model_var",
+// CHECK-NEXT:  "type": {
+// CHECK-NEXT:   "qualType": "int"
+// CHECK-NEXT:  },
+// CHECK-NEXT:  "tls": "static",
+// CHECK-NEXT:  "inner": [
+// CHECK-NEXT:   {
+// CHECK-NEXT:    "id": "0x{{.*}}",
+// CHECK-NEXT:    "kind": "TLSModelAttr",
+// CHECK-NEXT:    "range": {
+// CHECK-NEXT:     "begin": {
+// CHECK-NEXT:      "offset": 693,
+// CHECK-NEXT:      "col": 26,
+// CHECK-NEXT:      "tokLen": 9
+// CHECK-NEXT:     },
+// CHECK-NEXT:     "end": {
+// CHECK-NEXT:      "offset": 716,
+// CHECK-NEXT:      "col": 49,
+// CHECK-NEXT:      "tokLen": 1
+// CHECK-NEXT:     }
+// CHECK-NEXT:    },
+// CHECK-NEXT:    "tls_model": "local-exec"
+// CHECK-NEXT:   }
+// CHECK-NEXT:  ]
+// CHECK-NEXT: }