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 ddc6c00741b..a52755e794c 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
@@ -3830,5 +3830,9 @@ public class AST2CPPTests extends AST2BaseTest {
     	IFunction f1 = (IFunction) col.getName(0).resolveBinding();
     	assertInstances( col, f1, 5 );
 	}
+    
+    public void testBug90647() throws Exception {
+        parse( "char msg[] = \"Syntax error on line %s\\n\";", ParserLanguage.CPP ); //$NON-NLS-1$
+    }
 }