diff --git a/src/mono/mono/mini/interp/interp.c b/src/mono/mono/mini/interp/interp.c
index b1472278a9dd73..ea7dbc2ddb949a 100644
--- a/src/mono/mono/mini/interp/interp.c
+++ b/src/mono/mono/mini/interp/interp.c
@@ -5202,8 +5202,8 @@ interp_exec_method (InterpFrame *frame, ThreadContext *context, FrameClauseArgs
 			gpointer *byreference_this = (gpointer*)vt_sp;
 			*byreference_this = arg0;
 
-			/* Followed by a VTRESULT opcode which will push the result on the stack */
-			/* FIXME kill MINT_VTRESULT */
+			sp [-1].data.p = vt_sp;
+			vt_sp += MINT_VT_ALIGNMENT;
 			ip++;
 			MINT_IN_BREAK;
 		}
@@ -5514,6 +5514,21 @@ interp_exec_method (InterpFrame *frame, ThreadContext *context, FrameClauseArgs
 		MINT_IN_CASE(MINT_STFLD_I8_UNALIGNED) STFLD_UNALIGNED(l, gint64, TRUE); MINT_IN_BREAK;
 		MINT_IN_CASE(MINT_STFLD_R8_UNALIGNED) STFLD_UNALIGNED(f, double, TRUE); MINT_IN_BREAK;
 
+		MINT_IN_CASE(MINT_STFLD_VT_NOREF) {
+			MonoObject* const o = sp [-2].data.o;
+			NULL_CHECK (o);
+			sp -= 2;
+
+			guint16 offset = ip [1];
+			guint16 vtsize = ip [2];
+
+			memcpy ((char *) o + offset, sp [1].data.p, vtsize);
+
+			vt_sp -= ALIGN_TO (vtsize, MINT_VT_ALIGNMENT);
+			ip += 3;
+			MINT_IN_BREAK;
+		}
+
 		MINT_IN_CASE(MINT_STFLD_VT) {
 			MonoObject* const o = sp [-2].data.o;
 			NULL_CHECK (o);
diff --git a/src/mono/mono/mini/interp/mintops.def b/src/mono/mono/mini/interp/mintops.def
index edef35ef971a21..3ba07ec600c808 100644
--- a/src/mono/mono/mini/interp/mintops.def
+++ b/src/mono/mono/mini/interp/mintops.def
@@ -138,6 +138,7 @@ OPDEF(MINT_STFLD_R4, "stfld.r4", 2, Pop2, Push0, MintOpUShortInt)
 OPDEF(MINT_STFLD_R8, "stfld.r8", 2, Pop2, Push0, MintOpUShortInt)
 OPDEF(MINT_STFLD_O, "stfld.o", 2, Pop2, Push0, MintOpUShortInt)
 OPDEF(MINT_STFLD_VT, "stfld.vt", 3, Pop2, Push0, MintOpTwoShorts)
+OPDEF(MINT_STFLD_VT_NOREF, "stfld.vt.noref", 3, Pop2, Push0, MintOpTwoShorts)
 OPDEF(MINT_STFLD_I8_UNALIGNED, "stfld.i8.unaligned", 2, Pop2, Push0, MintOpUShortInt)
 OPDEF(MINT_STFLD_R8_UNALIGNED, "stfld.r8.unaligned", 2, Pop2, Push0, MintOpUShortInt)
 
diff --git a/src/mono/mono/mini/interp/transform.c b/src/mono/mono/mini/interp/transform.c
index e6f7eb52a6c3a2..af28de5ddd1ff7 100644
--- a/src/mono/mono/mini/interp/transform.c
+++ b/src/mono/mono/mini/interp/transform.c
@@ -4731,7 +4731,9 @@ generate_code (TransformData *td, MonoMethod *method, MonoMethodHeader *header,
 						vt_stack_used += size;
 					}
 				}
-				if (vt_stack_used != 0 || vt_res_size != 0) {
+				if ((vt_stack_used != 0 || vt_res_size != 0) &&
+						td->last_ins->opcode != MINT_INTRINS_BYREFERENCE_CTOR) {
+					/* FIXME Remove this once vtsp and sp are unified */
 					interp_add_ins (td, MINT_VTRESULT);
 					td->last_ins->data [0] = vt_res_size;
 					WRITE32_INS (td->last_ins, 1, &vt_stack_used);
@@ -5008,8 +5010,12 @@ generate_code (TransformData *td, MonoMethod *method, MonoMethodHeader *header,
 						/* the vtable of the field might not be initialized at this point */
 						mono_class_vtable_checked (domain, field_klass, error);
 						goto_if_nok (error, exit);
-
-						td->last_ins->data [1] = get_data_item_index (td, field_klass);
+						if (m_class_has_references (field_klass)) {
+							td->last_ins->data [1] = get_data_item_index (td, field_klass);
+						} else {
+							td->last_ins->opcode = MINT_STFLD_VT_NOREF;
+							td->last_ins->data [1] = mono_class_value_size (field_klass, NULL);
+						}
 					}
 				}
 			}