diff --git a/lib/map-over-styles-and-transform-background-image-declarations.js b/lib/map-over-styles-and-transform-background-image-declarations.js
index de1560a..ff6d8a8 100644
--- a/lib/map-over-styles-and-transform-background-image-declarations.js
+++ b/lib/map-over-styles-and-transform-background-image-declarations.js
@@ -39,6 +39,11 @@ function mapOverStylesAndTransformAllBackgroundImageDeclarations(styles, cb) {
 		var transformedDeclaration = extend(true, {}, declaration);
 		transformedDeclaration = attachInfoToDeclaration(declarations, declarationIndex);
 
+          // only add backgroud image with the '?__spriter' suffix
+          var declarationValue = transformedDeclaration.value;
+
+          if (/\?__spriter/i.test(declarationValue)) {
+            transformedDeclaration.value = declarationValue.replace('?__spriter', '');
 		// background-image always has a url
 		if(transformedDeclaration.property === 'background-image') {
 			return cb(transformedDeclaration, declarationIndex, declarations);
@@ -51,6 +56,7 @@ function mapOverStylesAndTransformAllBackgroundImageDeclarations(styles, cb) {
 				return cb(transformedDeclaration, declarationIndex, declarations);
 			}
 		}
+          }
 
 		// Wrap in an object so that the declaration doesn't get interpreted
 		return {