diff --git a/Program/zlib1.dll b/Program/zlib1.dll
new file mode 100644
index 0000000000..02c3c742e3
Binary files /dev/null and b/Program/zlib1.dll differ
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index c581b85884..78f518fcf8 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -154,6 +154,7 @@ list(APPEND SM_WINDOWS_PROGRAM_DLLS
   "${SM_PROGRAM_DIR}/avutil-52.dll"
   "${SM_PROGRAM_DIR}/parallel_lights_io.dll"
   "${SM_PROGRAM_DIR}/swscale-2.dll"
+  "${SM_PROGRAM_DIR}/zlib1.dll"
 )
 
 if(WIN32)
@@ -614,6 +615,7 @@ if(NOT APPLE)
     install(FILES "${SM_PROGRAM_DIR}/avutil-52.dll" DESTINATION "${SM_FULL_INSTALLATION_PATH}")
     install(FILES "${SM_PROGRAM_DIR}/parallel_lights_io.dll" DESTINATION "${SM_FULL_INSTALLATION_PATH}")
     install(FILES "${SM_PROGRAM_DIR}/swscale-2.dll" DESTINATION "${SM_FULL_INSTALLATION_PATH}")
+    install(FILES "${SM_PROGRAM_DIR}/zlib1.dll" DESTINATION "${SM_FULL_INSTALLATION_PATH}")
     install(FILES "${SM_PROGRAM_DIR}/StepMania.vdi" DESTINATION "${SM_FULL_INSTALLATION_PATH}")
 
     # foreach(SM_WINDOW_DLL "${SM_WINDOWS_PROGRAM_DLLS}")