diff --git a/cmake_modules/SwiftenConfig.cmake b/cmake_modules/SwiftenConfig.cmake
index 05ab853e..e5ef19e7 100644
--- a/cmake_modules/SwiftenConfig.cmake
+++ b/cmake_modules/SwiftenConfig.cmake
@@ -10,6 +10,8 @@ if( SWIFTEN_LIBRARY AND SWIFTEN_INCLUDE_DIR )
 			OUTPUT_VARIABLE SWIFTEN_LIBRARY)
 		string(REGEX REPLACE "[\r\n]"                  " " SWIFTEN_LIBRARY "${SWIFTEN_LIBRARY}")
 		string(REGEX REPLACE " +$"                     ""  SWIFTEN_LIBRARY "${SWIFTEN_LIBRARY}")
+	else()
+		message( FATAL_ERROR "Could NOT find swiften-config" )
 	endif()
 
 	set( SWIFTEN_INCLUDE_DIR ${SWIFTEN_INCLUDE_DIR}/.. )