diff --git a/dlls/itss/storage.c b/dlls/itss/storage.c
index 13fc9c1dd03..bc800a7f99c 100644
--- a/dlls/itss/storage.c
+++ b/dlls/itss/storage.c
@@ -336,7 +336,7 @@ HRESULT WINAPI ITSS_IStorageImpl_OpenStream(
     if( pwcsName[0] == '/' )
     {
         WCHAR *p = &path[strlenW( path ) - 1];
-        while( ( path <= p ) && ( *p = '/' ) )
+        while( ( path <= p ) && ( *p == '/' ) )
             *p-- = 0;
     }
     strcatW( path, pwcsName );
diff --git a/dlls/winedos/int21.c b/dlls/winedos/int21.c
index 77d8269a2dc..6df193ce80e 100644
--- a/dlls/winedos/int21.c
+++ b/dlls/winedos/int21.c
@@ -2630,7 +2630,7 @@ static void INT21_Ioctl_Block( CONTEXT86 *context )
             TRACE("IOCTL - SET LOGICAL DRIVE MAP for drive %s\n",
 		  INT21_DriveName( BL_reg(context)));
             dev[0] = 'A' + drive; dev[1] = ':'; dev[2] = 0;
-            tgt[0] = 'A' + drive + 1; dev[1] = ':'; dev[2] = '\\'; dev[3] = 0;
+            tgt[0] = 'A' + drive + 1; tgt[1] = ':'; tgt[2] = '\\'; tgt[3] = 0;
             if (!DefineDosDeviceW(DDD_RAW_TARGET_PATH, dev, tgt))
 	    {
 		SET_CFLAG(context);