diff --git a/lib/isc/win32/libisc.vcxproj.filters.in b/lib/isc/win32/libisc.vcxproj.filters.in
index 70c4832834..d21a77454c 100644
--- a/lib/isc/win32/libisc.vcxproj.filters.in
+++ b/lib/isc/win32/libisc.vcxproj.filters.in
@@ -206,6 +206,9 @@
     <ClInclude Include="..\include\isc\rwlock.h">
       <Filter>Library Header Files</Filter>
     </ClInclude>
+    <ClInclude Include="..\include\isc\safe.h">
+      <Filter>Library Header Files</Filter>
+    </ClInclude>
     <ClInclude Include="..\include\isc\serial.h">
       <Filter>Library Header Files</Filter>
     </ClInclude>
@@ -554,6 +557,9 @@
     <ClCompile Include="..\rwlock.c">
       <Filter>Library Source Files</Filter>
     </ClCompile>
+    <ClCompile Include="..\safe.c">
+      <Filter>Library Source Files</Filter>
+    </ClCompile>
     <ClCompile Include="..\serial.c">
       <Filter>Library Source Files</Filter>
     </ClCompile>
diff --git a/lib/isc/win32/libisc.vcxproj.in b/lib/isc/win32/libisc.vcxproj.in
index 8ac7be727c..5358c33d2c 100644
--- a/lib/isc/win32/libisc.vcxproj.in
+++ b/lib/isc/win32/libisc.vcxproj.in
@@ -298,6 +298,7 @@ copy /Y @VCREDIST_PATH@ ..\Build\Release\
     <ClInclude Include="..\include\isc\result.h" />
     <ClInclude Include="..\include\isc\resultclass.h" />
     <ClInclude Include="..\include\isc\rwlock.h" />
+    <ClInclude Include="..\include\isc\safe.h" />
     <ClInclude Include="..\include\isc\serial.h" />
     <ClInclude Include="..\include\isc\sha1.h" />
     <ClInclude Include="..\include\isc\sha2.h" />
@@ -392,6 +393,7 @@ copy /Y @VCREDIST_PATH@ ..\Build\Release\
     <ClCompile Include="..\region.c" />
     <ClCompile Include="..\result.c" />
     <ClCompile Include="..\rwlock.c" />
+    <ClCompile Include="..\safe.c" />
     <ClCompile Include="..\serial.c" />
     <ClCompile Include="..\sha1.c" />
     <ClCompile Include="..\sha2.c" />