diff --git a/IHP/IDE/SchemaDesigner/Compiler.hs b/IHP/IDE/SchemaDesigner/Compiler.hs
index 11465ad15..a7c7f9fd9 100644
--- a/IHP/IDE/SchemaDesigner/Compiler.hs
+++ b/IHP/IDE/SchemaDesigner/Compiler.hs
@@ -219,6 +219,7 @@ compileIdentifier identifier = if identifierNeedsQuoting then tshow identifier e
             , "ASSERTION"
             , "ASSIGNMENT"
             , "AT"
+            , "ALL"
             , "BACKWARD"
             , "BEFORE"
             , "BEGIN"