diff --git a/mapper/scheduling.go b/mapper/scheduling.go
index 657d284b..3cccd096 100644
--- a/mapper/scheduling.go
+++ b/mapper/scheduling.go
@@ -14,7 +14,7 @@ import (
 )
 
 var (
-	exprRegexp = regexp.MustCompile("^(.*)(=|!=|<|>| in | notin )(.*)$")
+	exprRegexp = regexp.MustCompile("^(.*?)\\s*(=|!=|<|>|in|notin)\\s*(.*)$")
 )
 
 type SchedulingMapper struct {