diff --git a/sketchlib/CMakeLists.txt b/sketchlib/CMakeLists.txt
index 9968ad2..5d3ff68 100644
--- a/sketchlib/CMakeLists.txt
+++ b/sketchlib/CMakeLists.txt
@@ -1,5 +1,3 @@
-project(sketchlib)
-
 set(HEADERS
     basecontainer.h
     containerfactory.h
@@ -93,7 +91,7 @@ set(SOURCES
     container/triangle.cpp
 )
 
-add_library(sketchlib ${HEADERS} ${SOURCES})
+add_library(sketchlib SHARED ${HEADERS} ${SOURCES})
 
 target_compile_definitions(sketchlib PRIVATE SKETCHLIB_LIBRARY)
 
diff --git a/sketchviewer/CMakeLists.txt b/sketchviewer/CMakeLists.txt
index d8aa7b0..bb9b86f 100644
--- a/sketchviewer/CMakeLists.txt
+++ b/sketchviewer/CMakeLists.txt
@@ -1,5 +1,3 @@
-project(sketchviewer)
-
 set(HEADERS
 )