diff --git a/package/opencv4/Config.in b/package/opencv4/Config.in
index a61a106952..eee0f999b9 100644
--- a/package/opencv4/Config.in
+++ b/package/opencv4/Config.in
@@ -34,11 +34,14 @@ config BR2_PACKAGE_OPENCV4_LIB_DNN
 	bool "dnn"
 	# dnn needs fenv.h which is not provided by uclibc
 	depends on !BR2_TOOLCHAIN_USES_UCLIBC
+	depends on BR2_PACKAGE_PROTOBUF_ARCH_SUPPORTS
+	select BR2_PACKAGE_OPENCV4_WITH_PROTOBUF
 	help
 	  Include opencv_dnn (Deep Neural Networks) module into the
 	  OpenCV build.
 
 comment "dnn needs a glibc or musl toolchain"
+	depends on BR2_PACKAGE_PROTOBUF_ARCH_SUPPORTS
 	depends on BR2_TOOLCHAIN_USES_UCLIBC
 
 config BR2_PACKAGE_OPENCV4_LIB_FEATURES2D