diff --git a/apps/showcases/CMakeLists.txt b/apps/showcases/CMakeLists.txt
index d13686228ce1a6a5dc076fbe2abc3b3fdc910a50..a436186a0f654852464bb6e984e69ba859bebdc5 100644
--- a/apps/showcases/CMakeLists.txt
+++ b/apps/showcases/CMakeLists.txt
@@ -1,2 +1 @@
 add_subdirectory( BidisperseFluidizedBed )
-add_subdirectory( HourGlass )