diff --git a/cmake/LibiglDownloadExternal.cmake b/cmake/LibiglDownloadExternal.cmake
index f7c69305cb..05d25a43d5 100644
--- a/cmake/LibiglDownloadExternal.cmake
+++ b/cmake/LibiglDownloadExternal.cmake
@@ -2,7 +2,7 @@
 include(DownloadProject)
 
 # With CMake 3.8 and above, we can hide warnings about git being in a
-# detached head by passing an extra GIT_CONFIG option
+# detached head by passing an extra GIT_COFIG option
 if(NOT (${CMAKE_VERSION} VERSION_LESS "3.8.0"))
 	set(LIBIGL_EXTRA_OPTIONS "GIT_CONFIG advice.detachedHead=false")
 else()
@@ -34,8 +34,8 @@ endfunction()
 ## CoMISo
 function(igl_download_comiso)
 	igl_download_project(CoMISo
-		GIT_REPOSITORY https://github.com/libigl/CoMISo.git
-		GIT_TAG        fea3ee0ba7d42ee3eca202d484e4fad855e4d6aa
+               GIT_REPOSITORY https://github.com/Anatoscope/CoMISo.git
+               GIT_TAG        b97463f97a152cb6bca31ef0fe3cfd4d13edff04
 	)
 endfunction()
 
@@ -47,14 +47,6 @@ function(igl_download_cork)
 	)
 endfunction()
 
-## Eigen
-function(igl_download_eigen)
-	igl_download_project(eigen
-		URL           http://bitbucket.org/eigen/eigen/get/3.2.10.tar.gz
-		URL_MD5       8ad10ac703a78143a4062c9bda9d8fd3
-	)
-endfunction()
-
 ## Embree
 function(igl_download_embree)
 	igl_download_project(embree
diff --git a/cmake/libigl.cmake b/cmake/libigl.cmake
index 4b11007a0a..6224c7cca7 100644
--- a/cmake/libigl.cmake
+++ b/cmake/libigl.cmake
@@ -36,6 +36,8 @@ option(LIBIGL_WITH_XML               "Use XML"                      OFF)
 option(LIBIGL_WITH_PYTHON            "Use Python"                   OFF)
 option(LIBIGL_WITHOUT_COPYLEFT       "Disable Copyleft libraries"   OFF)
 
+set(EIGEN_ROOT "Default" CACHE FILEPATH "Path to Eigen library")
+
 ################################################################################
 
 ### Configuration
@@ -93,16 +95,10 @@ if(UNIX)
 endif()
 
 # Eigen
-if(TARGET Eigen3::Eigen)
-  # If an imported target already exists, use it
-  target_link_libraries(igl_common INTERFACE Eigen3::Eigen)
-else()
-  igl_download_eigen()
-  target_include_directories(igl_common SYSTEM INTERFACE
-    $<BUILD_INTERFACE:${LIBIGL_EXTERNAL}/eigen>
-    $<INSTALL_INTERFACE:include>
-  )
-endif()
+target_include_directories(igl_common SYSTEM INTERFACE
+  $<BUILD_INTERFACE:${EIGEN_ROOT}>
+  $<INSTALL_INTERFACE:include>
+)
 
 # C++11 Thread library
 find_package(Threads REQUIRED)