diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1ab3c2306..5bb879017 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,6 +9,8 @@ For a complete change history, see the SVN log.
 
 ## Mapnik 2.1.0
 
+- Fixed rendering of thin svg lines (#1129)
+
 - Improved logging/debugging system with release logs and file redirection (#937 and partially #986, #467)
 
 - GDAL: allow setting nodata value on the fly (will override value if nodata is set in data) (#1161)
diff --git a/include/mapnik/svg/svg_renderer.hpp b/include/mapnik/svg/svg_renderer.hpp
index e62b2dfe7..80aac5f28 100644
--- a/include/mapnik/svg/svg_renderer.hpp
+++ b/include/mapnik/svg/svg_renderer.hpp
@@ -279,7 +279,8 @@ public:
             {
                 ras.reset();
 
-                if(fabs(curved_trans_contour.width()) < 0.0001)
+                // https://github.com/mapnik/mapnik/issues/1129
+                if(fabs(curved_trans_contour.width()) <= 1)
                 {
                     ras.add_path(curved_trans, attr.index);
                 }
@@ -384,7 +385,7 @@ public:
             {
                 ras.reset();
 
-                if(fabs(curved_trans_contour.width()) < 0.0001)
+                if(fabs(curved_trans_contour.width()) <= 1)
                 {
                     ras.add_path(curved_trans, attr.index);
                 }