diff --git a/src/core/CMakeLists.txt b/src/core/CMakeLists.txt
index 421ab10..79057d2 100644
--- a/src/core/CMakeLists.txt
+++ b/src/core/CMakeLists.txt
@@ -3,13 +3,16 @@
 find_package(Boost 1.62 REQUIRED)
 find_package(SQLite3 REQUIRED)
 
-set(CORE_HEADERS
-    entity.h
-    database.h
-)
+#set(CORE_HEADERS
+#    entity.h
+#    database.h
+#)
+
 set(CORE_SOURCES
-    entity.cpp
     database.cpp
+    entity.cpp
+    seller.cpp
+    article.cpp
 )
 
 add_library(core STATIC ${CORE_SOURCES})