Corrected links to the wiki
diff --git a/README.md b/README.md
index 9b58154..517b001 100644
--- a/README.md
+++ b/README.md
@@ -6,7 +6,7 @@
 
 Installation and usage
 ======================
-Please see project's wiki https://github.com/ptrkrysik/gr-gsm/wiki for information on [installation](Installation) and [usage](Usage) of gr-gsm.
+Please see project's wiki https://github.com/ptrkrysik/gr-gsm/wiki for information on [installation](https://github.com/ptrkrysik/gr-gsm/wiki/Installation) and [usage](https://github.com/ptrkrysik/gr-gsm/wiki/Usage) of gr-gsm.
 
 Mailing list
 ============