diff --git a/reactos/dll/win32/msi/database.c b/reactos/dll/win32/msi/database.c
index a73317c1c2f..66b79f99b48 100644
--- a/reactos/dll/win32/msi/database.c
+++ b/reactos/dll/win32/msi/database.c
@@ -113,7 +113,7 @@ UINT msi_get_raw_stream( MSIDATABASE *db, LPCWSTR stname, IStream **stm )
 {
     HRESULT r;
     IStorage *stg;
-    WCHAR decoded[MAX_STREAM_NAME_LEN];
+    WCHAR decoded[MAX_STREAM_NAME_LEN + 1];
 
     decode_streamname( stname, decoded );
     TRACE("%s -> %s\n", debugstr_w(stname), debugstr_w(decoded));
diff --git a/reactos/dll/win32/msi/streams.c b/reactos/dll/win32/msi/streams.c
index c4cee864640..8b46565bab3 100644
--- a/reactos/dll/win32/msi/streams.c
+++ b/reactos/dll/win32/msi/streams.c
@@ -56,7 +56,7 @@ static BOOL streams_set_table_size(MSISTREAMSVIEW *sv, UINT size)
 static STREAM *create_stream(MSISTREAMSVIEW *sv, LPCWSTR name, BOOL encoded, IStream *stm)
 {
     STREAM *stream;
-    WCHAR decoded[MAX_STREAM_NAME_LEN];
+    WCHAR decoded[MAX_STREAM_NAME_LEN + 1];
 
     stream = msi_alloc(sizeof(STREAM));
     if (!stream)