diff --git a/src/gnome-utils/dialog-account.c b/src/gnome-utils/dialog-account.c
index 5bfd04b8ec..f263f66661 100644
--- a/src/gnome-utils/dialog-account.c
+++ b/src/gnome-utils/dialog-account.c
@@ -56,6 +56,16 @@
 #define GCONF_SECTION "dialogs/account"
 #define DEFAULT_COLOR "#ededececebeb"
 
+#ifdef G_MODULE_EXPORT
+/* No separate marking of functions as "DLL export", please: The rest
+ * of gnucash relies on *everything* being exported.  As soon as at
+ * least one function is manually marked as export, nothing except
+ * those marked functions are exported, which will break the build on
+ * Windows. */
+# undef G_MODULE_EXPORT
+# define G_MODULE_EXPORT
+#endif
+
 enum account_cols
 {
     ACCOUNT_COL_FULLNAME = 0,
diff --git a/src/gnome/assistant-hierarchy.c b/src/gnome/assistant-hierarchy.c
index d52959574e..1ee424f2f8 100644
--- a/src/gnome/assistant-hierarchy.c
+++ b/src/gnome/assistant-hierarchy.c
@@ -57,6 +57,16 @@ static QofLogModule log_module = GNC_MOD_IMPORT;
 
 #define GCONF_SECTION "dialogs/new_hierarchy"
 
+#ifdef G_MODULE_EXPORT
+/* No separate marking of functions as "DLL export", please: The rest
+ * of gnucash relies on *everything* being exported.  As soon as at
+ * least one function is manually marked as export, nothing except
+ * those marked functions are exported, which will break the build on
+ * Windows. */
+# undef G_MODULE_EXPORT
+# define G_MODULE_EXPORT
+#endif
+
 typedef enum
 {
     COL_CHECKED,