diff --git a/wrappers/cpp/CMakeLists.txt b/wrappers/cpp/CMakeLists.txt
index d397d96c0..cce3ee314 100644
--- a/wrappers/cpp/CMakeLists.txt
+++ b/wrappers/cpp/CMakeLists.txt
@@ -23,8 +23,8 @@
 add_custom_command(OUTPUT include/linphone++/linphone.hh src/linphone++.cc
 	COMMAND ${PYTHON_EXECUTABLE} "${CMAKE_CURRENT_SOURCE_DIR}/genwrapper.py" "${PROJECT_BINARY_DIR}/coreapi/help/doc/xml"
 	DEPENDS ${PROJECT_SOURCE_DIR}/tools/genapixml.py
-	"${PROJECT_SOURCE_DIR}/tools/metadoc.py"
-	abstractapi.py
+	${PROJECT_SOURCE_DIR}/tools/metadoc.py
+	${PROJECT_SOURCE_DIR}/tools/abstractapi.py
 	genwrapper.py
 	class_header.mustache
 	class_impl.mustache