diff --git a/CMakeLists.txt b/CMakeLists.txt
index 676ef269e..a19bad32e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -49,8 +49,8 @@ option(ASSIMP_HUNTER_ENABLED "Enable Hunter package manager support" OFF)
 IF(ASSIMP_HUNTER_ENABLED)
   include("cmake-modules/HunterGate.cmake")
   HunterGate(
-    URL "https://github.com/cpp-pm/hunter/archive/v0.25.3.tar.gz"
-    SHA1 "3319fe6a3b08090df7df98dee75134d68e2ef5a3"
+    URL "https://github.com/cpp-pm/hunter/archive/v0.25.5.tar.gz"
+    SHA1 "a20151e4c0740ee7d0f9994476856d813cdead29"
   )
   add_definitions(-DASSIMP_USE_HUNTER)
 ENDIF()
diff --git a/include/assimp/matrix4x4.h b/include/assimp/matrix4x4.h
index a3a8abe22..861a7acef 100644
--- a/include/assimp/matrix4x4.h
+++ b/include/assimp/matrix4x4.h
@@ -53,6 +53,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 #include <assimp/vector3.h>
 #include <assimp/defs.h>
+#include <assimp/config.h>
 
 #ifdef __cplusplus