diff --git a/CMakeLists.txt b/CMakeLists.txt
index 1814175a..61db0649 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,4 +1,4 @@
-PROJECT (createrepo_c)
+PROJECT (createrepo_c C)
 CMAKE_MINIMUM_REQUIRED (VERSION 2.6)
 
 set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -std=gnu99")