diff --git a/Makefile b/Makefile
index 8771ff24..84b3fc68 100644
--- a/Makefile
+++ b/Makefile
@@ -194,8 +194,6 @@ $(HEADERS_TXT): $(CONFIGURATION_PRIVATE_HPP)
 			-D BUILD_ZLIB=ON \
 			-D BUILD_opencv_gapi=OFF \
 			-D BUILD_opencv_apps=OFF \
-			-D CMAKE_C_FLAGS=-DPNG_ARM_NEON_OPT=0 \
-			-D CMAKE_CXX_FLAGS=-DPNG_ARM_NEON_OPT=0 \
 			$(CMAKE_OPTIONS) "$(OPENCV_DIR)" && \
 		if [ "$(MIX_TARGET)" = "ios" ]; then \
 			xcodebuild BITCODE_GENERATION_MODE=bitcode IPHONEOS_DEPLOYMENT_TARGET=$(IPHONEOS_DEPLOYMENT_TARGET) ARCHS=$(IPHONEOS_ARCH) -sdk iphoneos -configuration $(CMAKE_BUILD_TYPE) -parallelizeTargets -jobs $(DEFAULT_JOBS) -target ALL_BUILD build ; \
diff --git a/Makefile.win b/Makefile.win
index 4136a279..2e27c1fe 100644
--- a/Makefile.win
+++ b/Makefile.win
@@ -166,8 +166,6 @@ $(HEADERS_TXT): $(CONFIGURATION_PRIVATE_HPP)
 			-D BUILD_ZLIB=ON \
 			-D BUILD_opencv_gapi=OFF \
 			-D BUILD_opencv_apps=OFF \
-			-D CMAKE_C_FLAGS="/D PNG_ARM_NEON_OPT=0" \
-			-D CMAKE_CXX_FLAGS="/D PNG_ARM_NEON_OPT=0" \
 			$(CMAKE_WIN_FINAL_OPTIONS_DEFINITIVE_EDITION_V2) "$(OPENCV_DIR)" && \
 		cmake --build . $(CMAKE_BUILD_PARAMETER) \
 	)