diff --git a/core/org.eclipse.cdt.core.tests/parser/org/eclipse/cdt/core/parser/tests/ast2/AST2CPPTests.java b/core/org.eclipse.cdt.core.tests/parser/org/eclipse/cdt/core/parser/tests/ast2/AST2CPPTests.java
index 3772cc159b1..cda250c6009 100644
--- a/core/org.eclipse.cdt.core.tests/parser/org/eclipse/cdt/core/parser/tests/ast2/AST2CPPTests.java
+++ b/core/org.eclipse.cdt.core.tests/parser/org/eclipse/cdt/core/parser/tests/ast2/AST2CPPTests.java
@@ -7966,5 +7966,24 @@ public class AST2CPPTests extends AST2BaseTest {
 		bh.assertProblem("sink3(z7)", 5);
 	}
 
+	//	struct A {};
+	//	namespace ns {
+	//	    struct C {
+	//	    	int operator+(int);
+	//	    };
+	//	    int operator+(const C&, const A&);
+	//	}
+	//
+	//	void check(int);
+	//	int main(int argc, char** argv) {
+	//		A a;
+	//		ns::C c;
+	//		check(c+1);
+	//		check(c+a);
+	//	}
+	public void testADLForOperators_296906() throws Exception {
+		String code= getAboveComment();
+		parseAndCheckBindings(code, ParserLanguage.CPP);
+	}
 }
 
diff --git a/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/semantics/CPPSemantics.java b/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/semantics/CPPSemantics.java
index 5135dfbae12..64922f6c79f 100644
--- a/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/semantics/CPPSemantics.java
+++ b/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/semantics/CPPSemantics.java
@@ -2825,11 +2825,9 @@ public class CPPSemantics {
 					if (scope == null)
 						return null;
 					lookup(funcData, scope);
-					if (methodData == null || !methodData.hasResults()) {
-						try {
-							doKoenigLookup(funcData);
-						} catch (DOMException e) {
-						}
+					try {
+						doKoenigLookup(funcData);
+					} catch (DOMException e) {
 					}
 				}
 			} catch (DOMException e) {