diff --git a/cmake_modules/SwiftenConfig.cmake b/cmake_modules/SwiftenConfig.cmake
index e5ef19e758d9731ca788dd2daa910688e672e0a6..319d29d9369835b529867112f06403a89cd5528a 100644
--- a/cmake_modules/SwiftenConfig.cmake
+++ b/cmake_modules/SwiftenConfig.cmake
@@ -6,7 +6,7 @@ if( SWIFTEN_LIBRARY AND SWIFTEN_INCLUDE_DIR )
 	set( SWIFTEN_CFLAGS "" )
 	if (SWIFTEN_CONFIG_EXECUTABLE)
 		execute_process(
-			COMMAND swiften-config --libs
+			COMMAND SWIFTEN_CONFIG_EXECUTABLE --libs
 			OUTPUT_VARIABLE SWIFTEN_LIBRARY)
 		string(REGEX REPLACE "[\r\n]"                  " " SWIFTEN_LIBRARY "${SWIFTEN_LIBRARY}")
 		string(REGEX REPLACE " +$"                     ""  SWIFTEN_LIBRARY "${SWIFTEN_LIBRARY}")