diff --git a/libs/jrtp4c/w32/jrtp4c.vcproj b/libs/jrtp4c/w32/jrtp4c.vcproj
index c62a9fd0bc..bdf68fe48d 100644
--- a/libs/jrtp4c/w32/jrtp4c.vcproj
+++ b/libs/jrtp4c/w32/jrtp4c.vcproj
@@ -40,7 +40,7 @@
 				AdditionalOptions="/D WIN32"
 				Optimization="0"
 				AdditionalIncludeDirectories=""$(ProjectDir)..\..\jthread-1.1.2\src";"$(ProjectDir)..\..\jrtplib\src";"$(ProjectDir)..\src""
-				PreprocessorDefinitions="WIN32;_DEBUG;_LIB;"
+				PreprocessorDefinitions="WIN32;_DEBUG;_LIB;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_DEPRECATE;"
 				RuntimeLibrary="1"
 			/>
 			<Tool
@@ -95,7 +95,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				AdditionalIncludeDirectories="&quot;$(ProjectDir)..\..\jthread-1.1.2\src&quot;;&quot;$(ProjectDir)..\..\jrtplib\src&quot;;&quot;$(ProjectDir)..\src&quot;"
-				PreprocessorDefinitions="WIN32;NDEBUG;_LIB;"
+				PreprocessorDefinitions="WIN32;NDEBUG;_LIB;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_DEPRECATE;"
 			/>
 			<Tool
 				Name="VCManagedResourceCompilerTool"