diff --git a/libgnucash/engine/kvp-frame.cpp b/libgnucash/engine/kvp-frame.cpp
index 438b360683..48f8037660 100644
--- a/libgnucash/engine/kvp-frame.cpp
+++ b/libgnucash/engine/kvp-frame.cpp
@@ -232,14 +232,11 @@ int compare(const KvpFrameImpl & one, const KvpFrameImpl & two) noexcept
     return 0;
 }
 
-GValue*
+void
 gvalue_from_kvp_value (const KvpValue *kval, GValue* val)
 {
-    if (kval == NULL) return NULL;
-    if (!val)
-        val = g_slice_new0 (GValue);
-    else
-        g_value_unset(val);
+    if (kval == NULL) return;
+    g_value_unset(val);
 
     switch (kval->get_type())
     {
@@ -274,11 +271,8 @@ gvalue_from_kvp_value (const KvpValue *kval, GValue* val)
         default:
 /* No transfer outside of QofInstance-derived classes! */
             PWARN ("Error! Invalid attempt to transfer Kvp type %d", kval->get_type());
-            g_slice_free (GValue, val);
-            val = NULL;
             break;
     }
-    return val;
 }
 
 KvpValue*
diff --git a/libgnucash/engine/kvp-value.hpp b/libgnucash/engine/kvp-value.hpp
index e3f4f9cd8b..6518dc4e80 100644
--- a/libgnucash/engine/kvp-value.hpp
+++ b/libgnucash/engine/kvp-value.hpp
@@ -175,9 +175,9 @@ KvpValueImpl::set(T val) noexcept
 /** @internal @{ */
 /** Convert a kvp_value into a GValue. Frames aren't converted.
  * @param kval: A KvpValue.
- * @return GValue*. Must be freed with g_free().
+ * @param val: The GValue in which to store the converted value.
  */
-GValue* gvalue_from_kvp_value (const KvpValue *kval, GValue* val = nullptr);
+void gvalue_from_kvp_value (const KvpValue *kval, GValue* val);
 
 /** Convert a gvalue into a kvpvalue.
  * @param gval: A GValue of a type KvpValue can digest.
diff --git a/libgnucash/engine/qofinstance.cpp b/libgnucash/engine/qofinstance.cpp
index 2ef3bf7882..11df55c1e8 100644
--- a/libgnucash/engine/qofinstance.cpp
+++ b/libgnucash/engine/qofinstance.cpp
@@ -1317,11 +1317,11 @@ static void
 wrap_gvalue_function (const char* key, KvpValue *val, wrap_param & param)
 {
     GValue *gv;
+    gv = g_slice_new0 (GValue);
     if (val->get_type() != KvpValue::Type::FRAME)
-        gv = gvalue_from_kvp_value(val);
+        gvalue_from_kvp_value(val, gv);
     else
     {
-        gv = g_slice_new0 (GValue);
         g_value_init (gv, G_TYPE_STRING);
         g_value_set_string (gv, nullptr);
     }