diff --git a/libs/iax/libiax2.vcproj b/libs/iax/libiax2.vcproj
index b57af2fa8c..cb9d56cfce 100644
--- a/libs/iax/libiax2.vcproj
+++ b/libs/iax/libiax2.vcproj
@@ -41,7 +41,7 @@
 				Name="VCCLCompilerTool"
 				Optimization="0"
 				InlineFunctionExpansion="0"
-				PreprocessorDefinitions="WIN32;_DEBUG;_LIB;LIBIAX;DEBUG_SUPPORT;_CRT_SECURE_NO_DEPRECATE;NEWJB;WIN32_TIME_GET_TIME"
+				PreprocessorDefinitions="WIN32;_DEBUG;_LIB;LIBIAX;DEBUG_SUPPORT;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_DEPRECATE;NEWJB;WIN32_TIME_GET_TIME"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
 				RuntimeLibrary="3"
@@ -103,7 +103,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				PreprocessorDefinitions="WIN32;NDEBUG;_LIB;LIBIAX;DEBUG_SUPPORT;WIN32_TIME_GET_TIME"
+				PreprocessorDefinitions="WIN32;NDEBUG;_LIB;LIBIAX;DEBUG_SUPPORT;WIN32_TIME_GET_TIME;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_DEPRECATE"
 				RuntimeLibrary="2"
 				UsePrecompiledHeader="0"
 				WarningLevel="3"