diff --git a/com.vogella.lsp.asciidoc.server/src/com/vogella/lsp/asciidoc/server/AsciidocTextDocumentService.java b/com.vogella.lsp.asciidoc.server/src/com/vogella/lsp/asciidoc/server/AsciidocTextDocumentService.java
index bee1f40..fbb5839 100644
--- a/com.vogella.lsp.asciidoc.server/src/com/vogella/lsp/asciidoc/server/AsciidocTextDocumentService.java
+++ b/com.vogella.lsp.asciidoc.server/src/com/vogella/lsp/asciidoc/server/AsciidocTextDocumentService.java
@@ -1366,6 +1366,14 @@ private List<CompletionItem> getStandardCompletions() {
 		include.setDetail("Include file");
 		items.add(include);
 
+		// WARNING admonition block
+		CompletionItem warning = new CompletionItem("WARNING");
+		warning.setKind(CompletionItemKind.Snippet);
+		warning.setInsertText("[WARNING]\n====\n${1:}\n====");
+		warning.setInsertTextFormat(InsertTextFormat.Snippet);
+		warning.setDetail("Warning admonition block");
+		items.add(warning);
+
 		return items;
 	}