diff --git a/sources.cmake b/sources.cmake
index ddbdb3290..f8cd40062 100644
--- a/sources.cmake
+++ b/sources.cmake
@@ -369,8 +369,7 @@ set(${PROJECT_NAME}_SDF_PUBLIC_HEADERS
 set(${PROJECT_NAME}_PYTHON_PARSER_PUBLIC_HEADERS
     ${PROJECT_SOURCE_DIR}/include/pinocchio/parsers/python.hpp)
 
-set(${PROJECT_NAME}_PYTHON_PARSER_SOURCES
-    ${PROJECT_SOURCE_DIR}/src/parsers/python/model.cpp)
+set(${PROJECT_NAME}_PYTHON_PARSER_SOURCES ${PROJECT_SOURCE_DIR}/src/parsers/python/model.cpp)
 
 set(${PROJECT_NAME}_EXTRA_SOURCES ${PROJECT_SOURCE_DIR}/src/extra/reachable-workspace.cpp)