diff --git a/core/org.eclipse.cdt.core.tests/parser/org/eclipse/cdt/core/parser/tests/CompleteParseASTTest.java b/core/org.eclipse.cdt.core.tests/parser/org/eclipse/cdt/core/parser/tests/CompleteParseASTTest.java
index c253b67d6f0..b41138487a3 100644
--- a/core/org.eclipse.cdt.core.tests/parser/org/eclipse/cdt/core/parser/tests/CompleteParseASTTest.java
+++ b/core/org.eclipse.cdt.core.tests/parser/org/eclipse/cdt/core/parser/tests/CompleteParseASTTest.java
@@ -2124,6 +2124,18 @@ public class CompleteParseASTTest extends CompleteParseBaseTest
     	parse( writer.toString() );
 	}
     
+    public void testBug71733() throws Exception
+	{
+    	Writer writer = new StringWriter();
+    	writer.write( "void foo( int );\n");
+    	writer.write( "#define BLAH() \\\n");
+    	writer.write( "  foo ( /*  slash / is misinterpreted as end of comment */ \\\n");
+    	writer.write( "    4 );\n");
+    	writer.write( "int f() { BLAH() }\n");
+    	parse( writer.toString() );
+    	assertEquals( callback.getReferences().size(), 1 );
+	}
+    
     public void testBug69526() throws Exception
 	{
     	Writer writer = new StringWriter();
diff --git a/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/parser/scanner2/Scanner2.java b/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/parser/scanner2/Scanner2.java
index b4732053c55..32d2f951afb 100644
--- a/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/parser/scanner2/Scanner2.java
+++ b/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/parser/scanner2/Scanner2.java
@@ -1819,7 +1819,7 @@ public class Scanner2 implements IScanner, IScannerData {
 			if( text[i] == '/' && ( i+1 < text.length ) && text[i+1] == '*')
 			{
 				i += 2;
-				while( i < text.length && text[i] != '*' && i+1 < text.length && text[i+1] != '/')
+				while( i < text.length && !(text[i] == '*' && i+1 < text.length && text[i+1] == '/'))
 					++i;
 				++i;
 			}