diff --git a/dlls/msi/package.c b/dlls/msi/package.c
index e6358865f83..1025607d4c1 100644
--- a/dlls/msi/package.c
+++ b/dlls/msi/package.c
@@ -1508,6 +1508,7 @@ UINT MSI_OpenPackageW(LPCWSTR szPackage, MSIPACKAGE **pPackage)
 
     TRACE("%s %p\n", debugstr_w(szPackage), pPackage);
 
+    localfile[0] = 0;
     if( szPackage[0] == '#' )
     {
         handle = atoiW(&szPackage[1]);