diff --git a/neuralnetdemo/CMakeLists.txt b/neuralnetdemo/CMakeLists.txt
index 8f84b1e..7f71a05 100644
--- a/neuralnetdemo/CMakeLists.txt
+++ b/neuralnetdemo/CMakeLists.txt
@@ -1,3 +1,5 @@
+find_package(Qt5Core CONFIG REQUIRED)
+
 set(HEADERS
 )
 
diff --git a/neuralnetlib/CMakeLists.txt b/neuralnetlib/CMakeLists.txt
index ff815c4..05662e2 100644
--- a/neuralnetlib/CMakeLists.txt
+++ b/neuralnetlib/CMakeLists.txt
@@ -1,3 +1,5 @@
+find_package(Qt5Core CONFIG REQUIRED)
+
 set(HEADERS
     debug.h
     neuralfactor.h