diff --git a/dll/steam_ugc.h b/dll/steam_ugc.h
index 13a2c601..97bc9976 100644
--- a/dll/steam_ugc.h
+++ b/dll/steam_ugc.h
@@ -712,10 +712,10 @@ bool GetItemDownloadInfo( PublishedFileId_t nPublishedFileID, uint64 *punBytesDo
     return false;
 }
 
-bool GetItemInstallInfo( PublishedFileId_t nPublishedFileID, uint64 *punSizeOnDisk, char *pchFolder, uint32 cchFolderSize, bool *pbLegacyItem ) // returns true if item is installed
+bool GetItemInstallInfo( PublishedFileId_t nPublishedFileID, uint64 *punSizeOnDisk, STEAM_OUT_STRING_COUNT( cchFolderSize ) char *pchFolder, uint32 cchFolderSize, bool *pbLegacyItem ) // returns true if item is installed
 {
     PRINT_DEBUG("Steam_UGC::GetItemInstallInfo old\n");
-    return false;
+    return GetItemInstallInfo(nPublishedFileID, punSizeOnDisk, pchFolder, cchFolderSize, (uint32*) nullptr);
 }
 
 bool GetItemUpdateInfo( PublishedFileId_t nPublishedFileID, bool *pbNeedsUpdate, bool *pbIsDownloading, uint64 *punBytesDownloaded, uint64 *punBytesTotal )