diff --git a/CMakeLists.txt b/CMakeLists.txt
index afd6717..268f80e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -3,6 +3,7 @@ project( Alepha )
 
 include( cmake/rules.cmake )
 
+link_libraries( pthread )
 
 
 # The core alepha library: