diff --git a/CMakeLists.txt b/CMakeLists.txt
index d039624..43006ce 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -97,7 +97,7 @@ set(BR_THIRDPARTY_LIBS ${BR_THIRDPARTY_LIBS} ${OpenCV_LIBS})
 find_package(Alphanum REQUIRED)
 
 # Add RandomLib
-set(BR_THIRDPARTY_SRC ${BR_THIRDPARTY_SRC} ${CMAKE_SOURCE_DIR}/3rdparty/RandomLib-1.9/src/Random.cpp)
+set(BR_THIRDPARTY_SRC ${BR_THIRDPARTY_SRC} ${CMAKE_CURRENT_SOURCE_DIR}/3rdparty/RandomLib-1.9/src/Random.cpp)
 include_directories(3rdparty/RandomLib-1.9/include)
 
 # Find cvmatio (if using it)
diff --git a/openbr/plugins/cmake/dlib.cmake b/openbr/plugins/cmake/dlib.cmake
index ddfa577..556fd74 100644
--- a/openbr/plugins/cmake/dlib.cmake
+++ b/openbr/plugins/cmake/dlib.cmake
@@ -4,11 +4,11 @@ if(${BR_WITH_DLIB})
   ExternalProject_Add(dlib
                       URL https://github.com/davisking/dlib/releases/download/v18.16/dlib-18.16.tar.bz2
                       URL_MD5 e9e5449bc25370afce2d254327afac99
-                      SOURCE_DIR "${CMAKE_SOURCE_DIR}/3rdparty/dlib-18.16"
+                      SOURCE_DIR "${PROJECT_SOURCE_DIR}/3rdparty/dlib-18.16"
                       CONFIGURE_COMMAND ""
                       BUILD_COMMAND ""
                       INSTALL_COMMAND "")
-  include_directories("${CMAKE_SOURCE_DIR}/3rdparty/dlib-18.16")
+  include_directories("${PROJECT_SOURCE_DIR}/3rdparty/dlib-18.16")
 else()
   set(BR_EXCLUDED_PLUGINS ${BR_EXCLUDED_PLUGINS} plugins/classification/dlib.cpp)
 endif()
diff --git a/share/openbr/cmake/FindAlphanum.cmake b/share/openbr/cmake/FindAlphanum.cmake
index 64b2efa..346955b 100644
--- a/share/openbr/cmake/FindAlphanum.cmake
+++ b/share/openbr/cmake/FindAlphanum.cmake
@@ -1,3 +1,3 @@
-find_path(ALPHANUM_DIR alphanum.hpp ${CMAKE_SOURCE_DIR}/3rdparty/*)
+find_path(ALPHANUM_DIR alphanum.hpp ${PROJECT_SOURCE_DIR}/3rdparty/*)
 mark_as_advanced(ALPHANUM_DIR)
 include_directories(${ALPHANUM_DIR})
diff --git a/share/openbr/cmake/FindDLib.cmake b/share/openbr/cmake/FindDLib.cmake
index 3fda660..bf538e6 100644
--- a/share/openbr/cmake/FindDLib.cmake
+++ b/share/openbr/cmake/FindDLib.cmake
@@ -1,4 +1,4 @@
-find_path(DLib_DIR dlib ${CMAKE_SOURCE_DIR}/3rdparty/*)
+find_path(DLib_DIR dlib ${PROJECT_SOURCE_DIR}/3rdparty/*)
 
 mark_as_advanced(DLib_DIR)
 include_directories(${DLib_DIR})
diff --git a/share/openbr/cmake/FindEigen3.cmake b/share/openbr/cmake/FindEigen3.cmake
index 3f20b0b..16db778 100644
--- a/share/openbr/cmake/FindEigen3.cmake
+++ b/share/openbr/cmake/FindEigen3.cmake
@@ -1,4 +1,4 @@
-find_path(EIGEN3_DIR signature_of_eigen3_matrix_library ${CMAKE_SOURCE_DIR}/3rdparty/*)
+find_path(EIGEN3_DIR signature_of_eigen3_matrix_library ${PROJECT_SOURCE_DIR}/3rdparty/*)
 mark_as_advanced(EIGEN3_DIR)
 include_directories(${EIGEN3_DIR})
 set(EIGEN3_LICENSE ${EIGEN3_DIR}/COPYING.LGPL)
diff --git a/share/openbr/cmake/FindHttpParser.cmake b/share/openbr/cmake/FindHttpParser.cmake
index 992e6f0..8fcb686 100644
--- a/share/openbr/cmake/FindHttpParser.cmake
+++ b/share/openbr/cmake/FindHttpParser.cmake
@@ -1,4 +1,4 @@
-find_path(HTTPPARSER_DIR http_parser.h ${CMAKE_SOURCE_DIR}/3rdparty/*)
+find_path(HTTPPARSER_DIR http_parser.h ${PROJECT_SOURCE_DIR}/3rdparty/*)
 mark_as_advanced(HTTPPARSER_DIR)
 include_directories(${HTTPPARSER_DIR})
 set(HTTPPARSER_SRC ${HTTPPARSER_DIR}/http_parser.c)
diff --git a/share/openbr/cmake/FindStasm4.cmake b/share/openbr/cmake/FindStasm4.cmake
index 6b1de04..d9335c6 100644
--- a/share/openbr/cmake/FindStasm4.cmake
+++ b/share/openbr/cmake/FindStasm4.cmake
@@ -8,7 +8,7 @@
 #   target_link_libraries(MY_TARGET ${Stasm4_LIBS})
 # ================================================================
 
-find_path(Stasm_DIR stasm/stasm_lib.h ${CMAKE_SOURCE_DIR}/3rdparty/* NO_DEFAULT_PATH)
+find_path(Stasm_DIR stasm/stasm_lib.h ${PROJECT_SOURCE_DIR}/3rdparty/* NO_DEFAULT_PATH)
 mark_as_advanced(Stasm_DIR)
 include_directories(${Stasm_DIR}/stasm)
 include_directories(${Stasm_DIR}/stasm/MOD_1)