diff --git a/ChangeLog b/ChangeLog
index 7f26e8e0..1ec38b15 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -30,7 +30,7 @@
 - add @max_slope to vips_hist_local() to implement CLAHE, thanks hunter-87
 - vips_gaussnoise() pixels are reproducible on recalc, thanks MvGulik
 - max/min sort values by y and x coordinate
-- tiff read uses libtiff scanline API is rows-per-strip is large
+- tiff read uses libtiff scanline API if rows-per-strip is large
 
 8/12/16 started 8.4.5
 - allow libgsf-1.14.26 to help centos, thanks tdiprima