diff --git a/build/VS2008/fullbench/fullbench.vcproj b/build/VS2008/fullbench/fullbench.vcproj
index 996ee26a9..2246262df 100644
--- a/build/VS2008/fullbench/fullbench.vcproj
+++ b/build/VS2008/fullbench/fullbench.vcproj
@@ -408,6 +408,10 @@
 				RelativePath="..\..\..\programs\util.c"
 				>
 			</File>
+			<File
+				RelativePath="..\..\..\programs\timefn.c"
+				>
+			</File>
 			<File
 				RelativePath="..\..\..\lib\compress\zstd_fast.c"
 				>
diff --git a/build/VS2008/fuzzer/fuzzer.vcproj b/build/VS2008/fuzzer/fuzzer.vcproj
index 25924c8b7..46cc4d4f2 100644
--- a/build/VS2008/fuzzer/fuzzer.vcproj
+++ b/build/VS2008/fuzzer/fuzzer.vcproj
@@ -332,6 +332,10 @@
 				RelativePath="..\..\..\programs\util.c"
 				>
 			</File>
+			<File
+				RelativePath="..\..\..\programs\timefn.c"
+				>
+			</File>
 			<File
 				RelativePath="..\..\..\programs\datagen.c"
 				>
diff --git a/build/VS2008/zstd/zstd.vcproj b/build/VS2008/zstd/zstd.vcproj
index d738be565..745f2e875 100644
--- a/build/VS2008/zstd/zstd.vcproj
+++ b/build/VS2008/zstd/zstd.vcproj
@@ -336,6 +336,10 @@
 				RelativePath="..\..\..\programs\util.c"
 				>
 			</File>
+			<File
+				RelativePath="..\..\..\programs\timefn.c"
+				>
+			</File>
 			<File
 				RelativePath="..\..\..\programs\benchfn.c"
 				>
diff --git a/build/VS2010/fullbench-dll/fullbench-dll.vcxproj b/build/VS2010/fullbench-dll/fullbench-dll.vcxproj
index 29762860f..befdc0445 100644
--- a/build/VS2010/fullbench-dll/fullbench-dll.vcxproj
+++ b/build/VS2010/fullbench-dll/fullbench-dll.vcxproj
@@ -167,6 +167,7 @@
   <ItemGroup>
     <ClCompile Include="..\..\..\lib\common\xxhash.c" />
     <ClCompile Include="..\..\..\programs\util.c" />
+    <ClCompile Include="..\..\..\programs\timefn.c" />
     <ClCompile Include="..\..\..\programs\datagen.c" />
     <ClCompile Include="..\..\..\programs\benchfn.c" />
     <ClCompile Include="..\..\..\tests\fullbench.c" />
diff --git a/build/VS2010/fullbench/fullbench.vcxproj b/build/VS2010/fullbench/fullbench.vcxproj
index a3a884a7b..57ee33716 100644
--- a/build/VS2010/fullbench/fullbench.vcxproj
+++ b/build/VS2010/fullbench/fullbench.vcxproj
@@ -156,7 +156,6 @@
   </ItemDefinitionGroup>
   <ItemGroup>
     <ClCompile Include="..\..\..\lib\common\entropy_common.c" />
-    <ClCompile Include="..\..\..\programs\util.c" />
     <ClCompile Include="..\..\..\lib\common\debug.c" />
     <ClCompile Include="..\..\..\lib\common\fse_decompress.c" />
     <ClCompile Include="..\..\..\lib\common\zstd_common.c" />
@@ -178,6 +177,8 @@
     <ClCompile Include="..\..\..\lib\decompress\zstd_decompress.c" />
     <ClCompile Include="..\..\..\lib\decompress\zstd_decompress_block.c" />
     <ClCompile Include="..\..\..\lib\decompress\zstd_ddict.c" />
+    <ClCompile Include="..\..\..\programs\util.c" />
+    <ClCompile Include="..\..\..\programs\timefn.c" />
     <ClCompile Include="..\..\..\programs\datagen.c" />
     <ClCompile Include="..\..\..\programs\benchfn.c" />
     <ClCompile Include="..\..\..\tests\fullbench.c" />
diff --git a/build/VS2010/fuzzer/fuzzer.vcxproj b/build/VS2010/fuzzer/fuzzer.vcxproj
index 106dcf99c..53881c194 100644
--- a/build/VS2010/fuzzer/fuzzer.vcxproj
+++ b/build/VS2010/fuzzer/fuzzer.vcxproj
@@ -182,6 +182,7 @@
     <ClCompile Include="..\..\..\lib\dictBuilder\divsufsort.c" />
     <ClCompile Include="..\..\..\lib\dictBuilder\zdict.c" />
     <ClCompile Include="..\..\..\programs\util.c" />
+    <ClCompile Include="..\..\..\programs\timefn.c" />
     <ClCompile Include="..\..\..\programs\datagen.c" />
     <ClCompile Include="..\..\..\tests\fuzzer.c" />
   </ItemGroup>
diff --git a/build/VS2010/zstd/zstd.vcxproj b/build/VS2010/zstd/zstd.vcxproj
index 6681e581d..6e7ddca1e 100644
--- a/build/VS2010/zstd/zstd.vcxproj
+++ b/build/VS2010/zstd/zstd.vcxproj
@@ -53,6 +53,7 @@
     <ClCompile Include="..\..\..\lib\legacy\zstd_v06.c" />
     <ClCompile Include="..\..\..\lib\legacy\zstd_v07.c" />
     <ClCompile Include="..\..\..\programs\util.c" />
+    <ClCompile Include="..\..\..\programs\timefn.c" />
     <ClCompile Include="..\..\..\programs\benchfn.c" />
     <ClCompile Include="..\..\..\programs\benchzstd.c" />
     <ClCompile Include="..\..\..\programs\datagen.c" />