diff --git a/src/ex_cmds2.c b/src/ex_cmds2.c
index 19d7d19..616f7a0 100644
--- a/src/ex_cmds2.c
+++ b/src/ex_cmds2.c
@@ -3189,14 +3189,21 @@
     vim_free(ffname);
 }
 
+static int did_source_packages = FALSE;
+
 /*
+ * ":packloadall"
  * Find plugins in the package directories and source them.
  */
     void
-source_packages()
+ex_packloadall(exarg_T *eap)
 {
-    do_in_path(p_pp, (char_u *)"pack/*/start/*", DIP_ALL + DIP_DIR,
+    if (!did_source_packages || (eap != NULL && eap->forceit))
+    {
+	did_source_packages = TRUE;
+	do_in_path(p_pp, (char_u *)"pack/*/start/*", DIP_ALL + DIP_DIR,
 							add_pack_plugin, p_pp);
+    }
 }
 
 /*