diff --git a/stepmania/src/RageUtil.h b/stepmania/src/RageUtil.h
index 0ab42ee7ca..6d248f0769 100644
--- a/stepmania/src/RageUtil.h
+++ b/stepmania/src/RageUtil.h
@@ -95,6 +95,18 @@ void CircularShift( vector<T> &v, int dist )
 	}
 }
 
+/*
+ * Helper function to remove all objects from an STL container for which the
+ * Predicate pred is true. If you want to remove all objects for which the predicate
+ * returns false, wrap the predicate with not1().
+ */
+template<typename Container, typename Predicate>
+inline void RemoveIf( Container& c, Predicate p )
+{
+	c.erase( remove_if(c.begin(), c.end(), p), c.end() );
+}
+
+
 /*
  * We only have unsigned swaps; byte swapping a signed value doesn't make sense. 
  *