diff --git a/CMakeLists.txt b/CMakeLists.txt
index 9791c08..c064a37 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -167,7 +167,7 @@ set(CMAKE_CXX_FLAGS "${BASALT_CXX_FLAGS} -march=${CXX_MARCH} ${BASALT_PASSED_CXX
 
 
 set(EIGEN_INCLUDE_DIR_HINTS ${EIGEN_ROOT})
-find_package(Eigen3 3.3.7 REQUIRED)
+find_package(Eigen3 3.3.7 EXACT REQUIRED MODULE)
 include_directories(${EIGEN3_INCLUDE_DIR})
 message(STATUS "Found Eigen headers in: ${EIGEN3_INCLUDE_DIR}")
 if(NOT EIGEN3_INCLUDE_DIR MATCHES "^${EIGEN_ROOT}")
diff --git a/cmake_modules/FindEigen3.cmake b/cmake_modules/FindEigen3.cmake
index 9c44084..9826d69 100644
--- a/cmake_modules/FindEigen3.cmake
+++ b/cmake_modules/FindEigen3.cmake
@@ -15,6 +15,10 @@
 # Copyright (c) 2009 Benoit Jacob <jacob.benoit.1@gmail.com>
 # Redistribution and use is allowed according to the terms of the 2-clause BSD license.
 
+# Adaptations (c) Nikolaus Demmel 2019
+# - pass NO_DEFAULT_PATH --> only works when passing exact HINTS
+
+
 if(NOT Eigen3_FIND_VERSION)
   if(NOT Eigen3_FIND_VERSION_MAJOR)
     set(Eigen3_FIND_VERSION_MAJOR 2)
@@ -63,12 +67,7 @@ else (EIGEN3_INCLUDE_DIR)
 
   find_path(EIGEN3_INCLUDE_DIR NAMES signature_of_eigen3_matrix_library
       HINTS ${EIGEN_INCLUDE_DIR_HINTS}
-      PATHS
-      /usr/local/include
-      /opt/local/include
-      ${CMAKE_INSTALL_PREFIX}/include
-      ${KDE4_INCLUDE_DIR}
-      PATH_SUFFIXES eigen3 eigen
+      NO_DEFAULT_PATH
     )
 
   if(EIGEN3_INCLUDE_DIR)