diff --git a/src/checker.cpp b/src/checker.cpp
index 33121b453..13d02c512 100644
--- a/src/checker.cpp
+++ b/src/checker.cpp
@@ -4027,6 +4027,7 @@ gb_internal DECL_ATTRIBUTE_PROC(var_decl_attribute) {
 		} else if (ev.kind == ExactValue_String) {
 			String model = ev.value_string;
 			if (model == "default" ||
+			    model == "globaldynamic" ||
 			    model == "localdynamic" ||
 			    model == "initialexec" ||
 			    model == "localexec") {
@@ -4035,6 +4036,7 @@ gb_internal DECL_ATTRIBUTE_PROC(var_decl_attribute) {
 				ERROR_BLOCK();
 				error(elem, "Invalid thread local model '%.*s'. Valid models:", LIT(model));
 				error_line("\tdefault\n");
+				error_line("\tglobaldynamic\n");
 				error_line("\tlocaldynamic\n");
 				error_line("\tinitialexec\n");
 				error_line("\tlocalexec\n");
diff --git a/src/llvm_backend_general.cpp b/src/llvm_backend_general.cpp
index 4ebb40d96..c0e57143d 100644
--- a/src/llvm_backend_general.cpp
+++ b/src/llvm_backend_general.cpp
@@ -2628,6 +2628,8 @@ gb_internal bool lb_apply_thread_local_model(LLVMValueRef value, String model) {
 		LLVMThreadLocalMode mode = LLVMGeneralDynamicTLSModel;
 		if (model == "default") {
 			mode = LLVMGeneralDynamicTLSModel;
+		} else if (model == "globaldynamic") {
+			mode = LLVMGeneralDynamicTLSModel;
 		} else if (model == "localdynamic") {
 			mode = LLVMLocalDynamicTLSModel;
 		} else if (model == "initialexec") {