diff --git a/CMakeLists.txt b/CMakeLists.txt
index cc5e2c7d..c3fd54ce 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -278,7 +278,8 @@ IF (CMAKE_COMPILER_IS_GNUCXX)
                    curl
                    z
                    crypto
-                   rt)
+                   rt
+                   pthread)
 ENDIF ()
 
 IF (MSVC)