diff --git a/CMakeLists.txt b/CMakeLists.txt
index 019f918896..f4a2568db6 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -68,6 +68,9 @@ if(POLICY CMP0075)
   cmake_policy(SET CMP0075 NEW)  # CMake 3.12+: Include file check macros honor `CMAKE_REQUIRED_LIBRARIES`
 endif()
 
+if(POLICY CMP0077)
+  cmake_policy(SET CMP0077 NEW)  # CMake 3.13+: option() honors normal variables.
+endif()
 
 #
 # Configure OpenCV CMake hooks