diff --git a/gui/pages.cpp b/gui/pages.cpp
index 1199a28..a3a1df3 100644
--- a/gui/pages.cpp
+++ b/gui/pages.cpp
@@ -1370,13 +1370,19 @@
 		tw_h_offset = 0;
 		if (!TWFunc::Path_Exists(package))
 			return -1;
+#ifdef USE_MINZIP
 		if (sysMapFile(package.c_str(), &map) != 0) {
+#else
+		if (!map.MapFile(package)) {
+#endif
 			LOGERR("Failed to map '%s'\n", package.c_str());
 			goto error;
 		}
 		if (!zip.Open(package.c_str(), &map)) {
 			LOGERR("Unable to open zip archive '%s'\n", package.c_str());
+#ifdef USE_MINZIP
 			sysReleaseMap(&map);
+#endif
 			goto error;
 		}
 		ctx.zip = &zip;
@@ -1418,7 +1424,9 @@
 
 	if (ctx.zip) {
 		ctx.zip->Close();
+#ifdef USE_MINZIP
 		sysReleaseMap(&map);
+#endif
 	}
 	return ret;
 
@@ -1426,7 +1434,9 @@
 	// Sometimes we get here without a real error
 	if (ctx.zip) {
 		ctx.zip->Close();
+#ifdef USE_MINZIP
 		sysReleaseMap(&map);
+#endif
 	}
 	return -1;
 }