diff --git a/cmake/PrepareSFG.cmake b/cmake/PrepareSFG.cmake
index e1665a44e37291fa53e98b2161d86563a3912352..54ee564d846f00a668ecf0524907e517aac62379 100644
--- a/cmake/PrepareSFG.cmake
+++ b/cmake/PrepareSFG.cmake
@@ -38,7 +38,7 @@ if( WALBERLA_CODEGEN_USE_PRIVATE_VENV )
         mark_as_advanced(_sfg_private_venv_done)
     endif()
 
-    set(PystencilsSfg_PYTHON_INTERPRETER ${_venv_python_exe})
+    set(PystencilsSfg_PYTHON_PATH ${_venv_python_exe})
 endif()
 
 #   Find pystencils-sfg