diff --git a/avalon.js b/avalon.js
index b734bd885..44ee2875f 100644
--- a/avalon.js
+++ b/avalon.js
@@ -2178,7 +2178,7 @@
                     var param = match[2] || ""
                     var value = attr.value
                     var name = attr.name
-                    msData[name] = value
+                    msData[name.replace(/(\-[$\w]+)/g,"")] = value
                     if (events[type]) {
                         param = type
                         type = "on"
diff --git a/avalon.modern.js b/avalon.modern.js
index da9008cf9..a0bf712a1 100644
--- a/avalon.modern.js
+++ b/avalon.modern.js
@@ -1621,7 +1621,7 @@
                     var param = match[2] || ""
                     var value = attr.value
                     var name = attr.name
-                    msData[name] = value
+                    msData[name.replace(/(\-[$\w]+)/g,"")] = value
                     if (events[type]) {
                         param = type
                         type = "on"
diff --git a/examples/avalon.shim.js b/examples/avalon.shim.js
index db45c9aac..1d77dd06e 100644
--- a/examples/avalon.shim.js
+++ b/examples/avalon.shim.js
@@ -2169,7 +2169,7 @@
                     var param = match[2] || ""
                     var value = attr.value
                     var name = attr.name
-                    msData[name] = value
+                    msData[name.replace(/(\-[$\w]+)/g,"")] = value
                     if (events[type]) {
                         param = type
                         type = "on"