diff --git a/CMakeLists.txt b/CMakeLists.txt
index 2cf5263..21311d4 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -54,7 +54,7 @@ if (IMAGINEMODELS_USE_AUTODIFF)
     find_package(Eigen3 NO_MODULE)
     if(NOT Eigen3_FOUND)
         message("-- Could not find Eigen3 library globally! Trying to include it as a submodule.")
-        set(EIGEN_PATH ${PROJECT_SOURCE_DIR}/extern/Eigen)
+        set(EIGEN_PATH ${PROJECT_SOURCE_DIR}/extern/Eigen3)
         if(NOT EXISTS ${EIGEN_PATH})
             message("The Eigen3 submodule was not found! Please run 'git submodule update --init' OR set the EIGEN_PATH variable to the eigen header files manually. Will proceed with autodifferentiation disabled." )
             set(IMAGINEMODELS_USE_AUTODIFF OFF)