diff --git a/3rdparty/libpng/libpng.vcxproj b/3rdparty/libpng/libpng.vcxproj
index 189db8e307..7e781065a6 100644
--- a/3rdparty/libpng/libpng.vcxproj
+++ b/3rdparty/libpng/libpng.vcxproj
@@ -68,7 +68,6 @@
false
false
pngpriv.h
- true
CompileAsC
true
$(DisableSpecificWarnings)
@@ -91,7 +90,6 @@
false
false
pngpriv.h
- true
CompileAsC
true
false
diff --git a/3rdparty/zlib/zlib.vcxproj b/3rdparty/zlib/zlib.vcxproj
index f0daafdd14..dbc63d51a2 100644
--- a/3rdparty/zlib/zlib.vcxproj
+++ b/3rdparty/zlib/zlib.vcxproj
@@ -84,7 +84,6 @@
$(WarningLevel)
ProgramDatabase
Disabled
- true
true
$(DisableSpecificWarnings);4127;4131;4242;4244
$(TreatWarningAsError)
@@ -102,7 +101,6 @@
true
true
false
- true
true
$(DisableSpecificWarnings);4127;4131;4242;4244
$(TreatWarningAsError)