diff --git a/Visual Studio Projects/FrontPanelTest.vcproj b/Visual Studio Projects/FrontPanelTest.vcproj
index e9290847..020fdc0b 100644
--- a/Visual Studio Projects/FrontPanelTest.vcproj	
+++ b/Visual Studio Projects/FrontPanelTest.vcproj	
@@ -197,6 +197,25 @@
 			<File
 				RelativePath="..\..\windows-build\pthreads\pthread.c"
 				>
+				<FileConfiguration
+					Name="Debug|Win32"
+					>
+					<Tool
+						Name="VCCLCompilerTool"
+						PreprocessorDefinitions="HAVE_CONFIG_H;PTW32_BUILD_INLINED;PTW32_STATIC_LIB;__CLEANUP_C;$(NOINHERIT)"
+						CompileAs="1"
+					/>
+				</FileConfiguration>
+				<FileConfiguration
+					Name="Release|Win32"
+					>
+					<Tool
+						Name="VCCLCompilerTool"
+						WholeProgramOptimization="false"
+						PreprocessorDefinitions="HAVE_CONFIG_H;PTW32_BUILD_INLINED;PTW32_STATIC_LIB;__CLEANUP_C;$(NOINHERIT)"
+						CompileAs="1"
+					/>
+				</FileConfiguration>
 			</File>
 			<File
 				RelativePath="..\sim_frontpanel.c"