diff --git a/CHANGELOG.md b/CHANGELOG.md
index 151d6e7..6bf50e0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,6 @@
+v0.0.32
+* Bug fix
+
 v0.0.31
 * Apply default 11.023 degree central meridian to cupola.
 
@@ -8,7 +11,7 @@ v0.0.29
 * Added forward spherical formula for the Cupola projection.
 
 v0.0.27
-* Fixed bug related to reading UTM South .prj files
+* Fixed bug related to reading UTM South .prj files.
 
 v0.0.26
 * Remove source code and other unneeded files from npm distribution.
diff --git a/package.json b/package.json
index 58c9741..f26d238 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
 	"name": "mproj",
-	"version": "0.0.31",
+	"version": "0.0.32",
 	"description": "A JavaScript port of the Proj.4 cartographic projections library",
 	"keywords": [
 		"projections",
diff --git a/src/projections/bertin1953.js b/src/projections/bertin1953.js
index 397e972..bf9ed97 100644
--- a/src/projections/bertin1953.js
+++ b/src/projections/bertin1953.js
@@ -59,7 +59,7 @@ function pj_bertin1953(P) {
       xy.x *= 1 + d;
     }
     if (xy.y > 0) {
-      xy.x *= 1 + d / 1.5 * xy.x * xy.x;
+      xy.y *= 1 + d / 1.5 * xy.x * xy.x;
     }
 
     return xy;