diff --git a/changelog.txt b/changelog.txt
index 46f935b4..bc573745 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -5,6 +5,7 @@ OPENSEADRAGON CHANGELOG
 
 * Fixed an error when using navPrevNextWrap on single images (#135)
 * Various fixes to our timer handling (#133)
+* Now generating source map for openseadragon.min.js (#51)
 
 0.9.128:
 
@@ -36,10 +37,10 @@ OPENSEADRAGON CHANGELOG
 
 0.9.125:
 
-* Fully deprecated OpenSeadragon.createFromDZI, safely deprecated Viewer.openTileSource and 
+* Fully deprecated OpenSeadragon.createFromDZI, safely deprecated Viewer.openTileSource and
   Viewer.openDZI to use Viewer.open internally. (#53 & #54).
 * Full page bug fix for when viewer is child of document body (#43).
-* Overlays for DZI bug fix (#45). 
+* Overlays for DZI bug fix (#45).
 * DziTileSource: avoid changing relative paths (#56).
 * Fix typo in preserveViewport handling (#77).
 * Fix updateMulti timer leak after multiple Viewer.open() calls (#76).