diff --git a/pmd-java/src/main/java/net/sourceforge/pmd/lang/java/rule/performance/InefficientStringBufferingRule.java b/pmd-java/src/main/java/net/sourceforge/pmd/lang/java/rule/performance/InefficientStringBufferingRule.java
index a2c298095a..3850e21101 100644
--- a/pmd-java/src/main/java/net/sourceforge/pmd/lang/java/rule/performance/InefficientStringBufferingRule.java
+++ b/pmd-java/src/main/java/net/sourceforge/pmd/lang/java/rule/performance/InefficientStringBufferingRule.java
@@ -46,7 +46,7 @@ public class InefficientStringBufferingRule extends AbstractJavaRule {
 
     @Override
     public Object visit(ASTAdditiveExpression node, Object data) {
-        if (node.getParent() instanceof ASTConditionalExpression) {
+        if (node.getParent() instanceof ASTConditionalExpression || node.getNthParent(2) instanceof ASTConditionalExpression) {
             // ignore concats in ternary expressions
             return data;
         }
diff --git a/pmd-java/src/test/resources/net/sourceforge/pmd/lang/java/rule/performance/xml/InefficientStringBuffering.xml b/pmd-java/src/test/resources/net/sourceforge/pmd/lang/java/rule/performance/xml/InefficientStringBuffering.xml
index 9533ad0279..0c31fbb10a 100644
--- a/pmd-java/src/test/resources/net/sourceforge/pmd/lang/java/rule/performance/xml/InefficientStringBuffering.xml
+++ b/pmd-java/src/test/resources/net/sourceforge/pmd/lang/java/rule/performance/xml/InefficientStringBuffering.xml
@@ -447,6 +447,7 @@ public class Foo {
     public String toString() {
         StringBuilder sb = new StringBuilder("Foo{");
         sb.append("someInt=").append(this.someInt < 0 ? "n/a" : this.someInt + "ms");
+        sb.append("someInt2=").append(this.someInt >= 0 ? this.someInt + "ms" : "n/a");
         sb.append('}');
         return sb.toString();
     }