diff --git a/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/core/parser/IPreprocessorDirective.java b/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/core/parser/IPreprocessorDirective.java
index db5d190f467..4a2b25f007a 100644
--- a/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/core/parser/IPreprocessorDirective.java
+++ b/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/core/parser/IPreprocessorDirective.java
@@ -100,7 +100,7 @@ public interface IPreprocessorDirective {
 	public static final int ppImport = 12;
 
 	/**
-	 * GNU preprocessor extension <code>#warning</code>.
+	 * C23 and C++23 preprocessor directive <code>#warning</code>.
 	 * Similar to <code>#error</code>.
 	 */
 	public static final int ppWarning = 13;