diff --git a/poi/src/main/java/org/apache/poi/ss/formula/functions/NormDist.java b/poi/src/main/java/org/apache/poi/ss/formula/functions/NormDist.java
index 32fd5bc300..3b81e5ec86 100644
--- a/poi/src/main/java/org/apache/poi/ss/formula/functions/NormDist.java
+++ b/poi/src/main/java/org/apache/poi/ss/formula/functions/NormDist.java
@@ -48,8 +48,6 @@ public final class NormDist extends Fixed4ArgFunction implements FreeRefFunction
             Double xval = evaluateValue(arg1, srcRowIndex, srcColumnIndex);
             if (xval == null) {
                 return ErrorEval.VALUE_INVALID;
-            } else if (xval < 0) {
-                return ErrorEval.NUM_ERROR;
             }
             Double mean = evaluateValue(arg2, srcRowIndex, srcColumnIndex);
             if (mean == null) {