diff --git a/gcc/go/gofrontend/MERGE b/gcc/go/gofrontend/MERGE
index 0b110e02d63..f6d7a002cbf 100644
--- a/gcc/go/gofrontend/MERGE
+++ b/gcc/go/gofrontend/MERGE
@@ -1,4 +1,4 @@
-c49ddc84f3ce89310585aad23ab6e51ef5523748
+3d9ff9bc339942922f1be3bef07c6fe2978ad81a
 
 The first line of this file holds the git revision number of the last
 merge done from the gofrontend repository.
diff --git a/gcc/go/gofrontend/expressions.cc b/gcc/go/gofrontend/expressions.cc
index 12505b23939..597f0a0daef 100644
--- a/gcc/go/gofrontend/expressions.cc
+++ b/gcc/go/gofrontend/expressions.cc
@@ -1204,7 +1204,14 @@ Func_expression::do_get_backend(Translate_context* context)
   // expression.  It is a pointer to a struct whose first field points
   // to the function code and whose remaining fields are the addresses
   // of the closed-over variables.
-  return this->closure_->get_backend(context);
+  Bexpression *bexpr = this->closure_->get_backend(context);
+
+  // Introduce a backend type conversion, to account for any differences
+  // between the argument type (function descriptor, struct with a
+  // single field) and the closure (struct with multiple fields).
+  Gogo* gogo = context->gogo();
+  Btype *btype = this->type()->get_backend(gogo);
+  return gogo->backend()->convert_expression(btype, bexpr, this->location());
 }
 
 // Ast dump for function.