diff --git a/wally/CMakeLists.txt b/wally/CMakeLists.txt
index 3552c46..9e2c7d1 100644
--- a/wally/CMakeLists.txt
+++ b/wally/CMakeLists.txt
@@ -234,7 +234,7 @@ else( APPLE )
 
   set( PROGNAME wally )
   add_executable( ${PROGNAME} ${WALLY_SRCS} ${WALLY_MOC_SRCS} ${WALLY_RC_SRCS} ${WALLY_UI_HDRS} )
-  target_link_libraries( ${PROGNAME} ${QT_LIBRARIES} ${EXIF_LIBRARIES} )
+  target_link_libraries( ${PROGNAME} ${QT_LIBRARIES} ${EXIF_LIBRARIES} X11)
   install( TARGETS ${PROGNAME} DESTINATION /usr/bin )
 
   if( CMAKE_BUILD_TYPE STREQUAL Release )