diff --git a/src/win32/Stella.vcproj b/src/win32/Stella.vcproj
index 3c316f7a6..6f130651c 100755
--- a/src/win32/Stella.vcproj
+++ b/src/win32/Stella.vcproj
@@ -974,7 +974,19 @@
 					>
 				</File>
 				<File
-					RelativePath="..\zlib\gzio.c"
+					RelativePath="..\zlib\gzclose.c"
+					>
+				</File>
+				<File
+					RelativePath="..\zlib\gzlib.c"
+					>
+				</File>
+				<File
+					RelativePath="..\zlib\gzread.c"
+					>
+				</File>
+				<File
+					RelativePath="..\zlib\gzwrite.c"
 					>
 				</File>
 				<File
@@ -1763,6 +1775,10 @@
 					RelativePath="..\zlib\deflate.h"
 					>
 				</File>
+				<File
+					RelativePath="..\zlib\gzguts.h"
+					>
+				</File>
 				<File
 					RelativePath="..\zlib\inffast.h"
 					>