--- a/cmake/OpenCVGenPkgconfig.cmake
+++ b/cmake/OpenCVGenPkgconfig.cmake
@@ -45,7 +45,7 @@ if(NOT DEFINED CMAKE_HELPER_SCRIPT)
 if(INSTALL_TO_MANGLED_PATHS)
   set(OPENCV_PC_FILE_NAME "opencv-${OPENCV_VERSION}.pc")
 else()
-  set(OPENCV_PC_FILE_NAME opencv.pc)
+  set(OPENCV_PC_FILE_NAME opencv3.pc)
 endif()
 
 # build the list of opencv libs and dependencies for all modules