diff --git a/psl-java/src/main/java/org/linqs/psl/runtime/RuntimeConfig.java b/psl-java/src/main/java/org/linqs/psl/runtime/RuntimeConfig.java
index 31c0abccd..8c33da6ed 100644
--- a/psl-java/src/main/java/org/linqs/psl/runtime/RuntimeConfig.java
+++ b/psl-java/src/main/java/org/linqs/psl/runtime/RuntimeConfig.java
@@ -1056,7 +1056,7 @@ public EvalInfo deserialize(JsonParser jsonParser, DeserializationContext deseri
 
         private EvalInfo parseEvalDef(ObjectNode root) {
             if (!root.hasNonNull(KEY_EVALUATOR)) {
-                throw new IllegalArgumentException("Evalautor object missing the '" + KEY_EVALUATOR + "' key.");
+                throw new IllegalArgumentException("Evaluator object missing the '" + KEY_EVALUATOR + "' key.");
             }
 
             String evaluator = root.get(KEY_EVALUATOR).textValue();