diff --git a/src/compiler/compiler_internal.h b/src/compiler/compiler_internal.h
index 9f832bd29..1d949aacf 100644
--- a/src/compiler/compiler_internal.h
+++ b/src/compiler/compiler_internal.h
@@ -1724,6 +1724,7 @@ struct SemaContext_
 	Decl** locals;
 	DynamicScope active_scope;
 	Expr *return_expr;
+	bool is_temp;
 };
 
 typedef struct
diff --git a/src/compiler/llvm_codegen_module.c b/src/compiler/llvm_codegen_module.c
index 584ec0803..a33d518d6 100644
--- a/src/compiler/llvm_codegen_module.c
+++ b/src/compiler/llvm_codegen_module.c
@@ -60,7 +60,7 @@ void gencontext_begin_module(GenContext *c)
 	ASSERT0(!c->module && "Expected no module");
 
 	codegen_setup_object_names(c->code_module, &c->ir_filename, &c->asm_filename, &c->object_filename);
-
+	DEBUG_LOG("Emit module %s.", c->code_module->name->module);
 	c->panic_var = compiler.context.panic_var;
 	c->panicf = compiler.context.panicf;
 	c->module = LLVMModuleCreateWithNameInContext(c->code_module->name->module, c->context);
diff --git a/src/compiler/sema_expr.c b/src/compiler/sema_expr.c
index 72575983f..16795d10c 100644
--- a/src/compiler/sema_expr.c
+++ b/src/compiler/sema_expr.c
@@ -1362,6 +1362,12 @@ static bool sema_analyse_parameter(SemaContext *context, Expr *arg, Decl *param,
 			break;
 		case VARDECL_PARAM_EXPR:
 			// #foo
+			if (context->is_temp)
+			{
+				SemaContext *temp = context;
+				context = MALLOCS(SemaContext);
+				*context = *temp;
+			}
 			param->var.hash_var.context = context;
 			param->var.hash_var.span = arg->span;
 			break;
diff --git a/src/compiler/semantic_analyser.c b/src/compiler/semantic_analyser.c
index 5df72f52e..59b4cda2c 100644
--- a/src/compiler/semantic_analyser.c
+++ b/src/compiler/semantic_analyser.c
@@ -529,6 +529,7 @@ SemaContext *context_transform_for_eval(SemaContext *context, SemaContext *temp_
 	temp_context->compilation_unit = context->compilation_unit;
 	temp_context->call_env = context->call_env;
 	temp_context->current_macro = context->current_macro;
+	temp_context->is_temp = true;
 	return temp_context;
 }
 
diff --git a/src/utils/lib.h b/src/utils/lib.h
index b0c2e77d0..836de296a 100644
--- a/src/utils/lib.h
+++ b/src/utils/lib.h
@@ -343,7 +343,7 @@ static inline void* expand_(void *vec, size_t element_size)
 #define CONCAT(a, b) CONCAT_INNER(a, b)
 
 #define FOREACH(type__, name__, vec__) \
-type__* CONCAT(foreach_vec_, __LINE__) = (vec__); type__* CONCAT(foreach_vecend_, __LINE__) = CONCAT(foreach_vec_, __LINE__) + vec_size(CONCAT(foreach_vec_, __LINE__)); \
+type__* CONCAT(foreach_vec_, __LINE__) = (vec__); type__* CONCAT(foreach_vecend_, __LINE__) = CONCAT(foreach_vec_, __LINE__) ? CONCAT(foreach_vec_, __LINE__) + vec_size(CONCAT(foreach_vec_, __LINE__)) : NULL; \
 type__* CONCAT(foreach_it_, __LINE__) = CONCAT(foreach_vec_, __LINE__); \
 for (type__ name__ ; CONCAT(foreach_it_, __LINE__) < CONCAT(foreach_vecend_, __LINE__) ? (name__ = *CONCAT(foreach_it_, __LINE__), true) : false; CONCAT(foreach_it_, __LINE__)++)