diff --git a/include/xbps_api.h b/include/xbps_api.h
index 3736a966..8a481a57 100644
--- a/include/xbps_api.h
+++ b/include/xbps_api.h
@@ -56,7 +56,7 @@
  */
 #define XBPS_PKGINDEX_VERSION	"1.5"
 
-#define XBPS_API_VERSION	"20120614"
+#define XBPS_API_VERSION	"20120614-1"
 #define XBPS_VERSION		"0.16"
 
 /**
diff --git a/lib/transaction_sortdeps.c b/lib/transaction_sortdeps.c
index a7a9d836..ad2d9d30 100644
--- a/lib/transaction_sortdeps.c
+++ b/lib/transaction_sortdeps.c
@@ -147,13 +147,29 @@ pkgdep_alloc(prop_dictionary_t d, const char *name, const char *trans)
 static void
 pkgdep_end(prop_array_t sorted)
 {
+	prop_dictionary_t d;
 	struct pkgdep *pd;
+	const char *trans;
 
 	while ((pd = TAILQ_FIRST(&pkgdep_list)) != NULL) {
 		TAILQ_REMOVE(&pkgdep_list, pd, pkgdep_entries);
-		if (sorted != NULL && pd->d != NULL)
+		if (sorted != NULL && pd->d != NULL) {
+			/* do not add duplicates due to vpkgs */
+			d = xbps_find_pkg_in_array_by_name(sorted,
+			    pd->name, NULL);
+			if (d == NULL) {
+				prop_array_add(sorted, pd->d);
+				pkgdep_release(pd);
+				continue;
+			}
+			prop_dictionary_get_cstring_nocopy(d,
+			    "transaction", &trans);
+			if (strcmp(trans, pd->trans) == 0) {
+				pkgdep_release(pd);
+				continue;
+			}
 			prop_array_add(sorted, pd->d);
-
+		}
 		pkgdep_release(pd);
 	}
 }