diff --git a/simgear/io/CMakeLists.txt b/simgear/io/CMakeLists.txt
index 6580ca2c..111a8cac 100644
--- a/simgear/io/CMakeLists.txt
+++ b/simgear/io/CMakeLists.txt
@@ -53,7 +53,7 @@ if (CycloneDDS_FOUND)
     set(SOURCES ${SOURCES}
         sg_dds.cxx
         )
-endif (CycloneDDS_idlc_FOUND)
+endif (CycloneDDS_FOUND)
 
 simgear_component(io io "${SOURCES}" "${HEADERS}")