diff --git a/slsDetectorGui/CMakeLists.txt b/slsDetectorGui/CMakeLists.txt
index 6bdc29ef1..343cabdc0 100644
--- a/slsDetectorGui/CMakeLists.txt
+++ b/slsDetectorGui/CMakeLists.txt
@@ -105,6 +105,7 @@ target_link_libraries(slsDetectorGui
     ${QT_QTCORE_LIBRARIES}
     ${QT_QTGUI_LIBRARIES}
     ${QWT_LIBRARIES}
+    pthread
 )
 
 add_executable(gui_client