diff --git a/libs/CMakeLists.txt b/libs/CMakeLists.txt
index 07b71cfbb..f733c3f09 100644
--- a/libs/CMakeLists.txt
+++ b/libs/CMakeLists.txt
@@ -305,7 +305,7 @@ ExternalProject_Add(mgcxx-proj
     "-DENABLE_TESTS=OFF"
     "-DCMAKE_C_COMPILER=${CMAKE_C_COMPILER}"
     "-DCMAKE_CXX_COMPILER=${CMAKE_CXX_COMPILER}"
-  INSTALL_COMMAND ""
+  INSTALL_DIR    "${PROJECT_BINARY_DIR}/mgcxx"
 )
 set(MGCXX_ROOT "${PROJECT_BINARY_DIR}/mgcxx")