diff --git a/stepmania/src/libpng/include/png.h b/stepmania/src/libpng/include/png.h
index 6209cb6610..2ac19465d4 100644
--- a/stepmania/src/libpng/include/png.h
+++ b/stepmania/src/libpng/include/png.h
@@ -343,7 +343,7 @@
 #ifndef PNG_VERSION_INFO_ONLY
 
 /* include the compression library's header */
-#include "zlib.h"
+#include "zlib/zlib.h"
 
 /* include all user configurable info, including optional assembler routines */
 #include "pngconf.h"