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-rw-r--r--src/sfnt/sfwoff2.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/src/sfnt/sfwoff2.c b/src/sfnt/sfwoff2.c
index 6e2ff040f..9beb01f65 100644
--- a/src/sfnt/sfwoff2.c
+++ b/src/sfnt/sfwoff2.c
@@ -292,10 +292,10 @@
for ( i = 0; i < aligned_size; i += 4 )
- checksum += ( buf[i ] << 24 ) |
- ( buf[i + 1] << 16 ) |
- ( buf[i + 2] << 8 ) |
- ( buf[i + 3] << 0 );
+ checksum += ( (FT_ULong)buf[i ] << 24 ) |
+ ( (FT_ULong)buf[i + 1] << 16 ) |
+ ( (FT_ULong)buf[i + 2] << 8 ) |
+ ( (FT_ULong)buf[i + 3] << 0 );
/* If size is not aligned to 4, treat as if it is padded with 0s. */
if ( size != aligned_size )