diff --git a/src/plugin.c b/src/plugin.c
index bc95d5d8..159014bb 100644
--- a/src/plugin.c
+++ b/src/plugin.c
@@ -53,7 +53,8 @@ static gboolean add_plugin(void *handle, struct ofono_plugin_desc *desc)
 		return FALSE;
 
 	if (g_str_equal(desc->version, OFONO_VERSION) == FALSE) {
-		ofono_error("Version mismatch for %s", desc->description);
+		ofono_error("Version mismatch for %s: found %s, expected %s",
+			    desc->description, desc->version, OFONO_VERSION);
 		return FALSE;
 	}