diff --git a/docs/grammar/SolidityLexer.g4 b/docs/grammar/SolidityLexer.g4
index 306afd92f..0452f9fa0 100644
--- a/docs/grammar/SolidityLexer.g4
+++ b/docs/grammar/SolidityLexer.g4
@@ -90,6 +90,7 @@ Try: 'try';
 Type: 'type';
 Ufixed: 'ufixed' | ('ufixed' [1-9][0-9]+ 'x' [1-9][0-9]+);
 Unchecked: 'unchecked';
+Unicode: 'unicode';
 /**
  * Sized unsigned integer types.
  * uint is an alias of uint256.
diff --git a/test/libsolidity/syntaxTests/freeFunctions/invalid_function_named_unicode.sol b/test/libsolidity/syntaxTests/freeFunctions/invalid_function_named_unicode.sol
new file mode 100644
index 000000000..889d7df21
--- /dev/null
+++ b/test/libsolidity/syntaxTests/freeFunctions/invalid_function_named_unicode.sol
@@ -0,0 +1,4 @@
+function unicode() returns {}
+
+// ----
+// ParserError 2314: (9-16): Expected identifier but got 'ILLEGAL'
diff --git a/test/libsolidity/syntaxTests/parsing/invalid_variable_named_unicode.sol b/test/libsolidity/syntaxTests/parsing/invalid_variable_named_unicode.sol
new file mode 100644
index 000000000..0180ebf73
--- /dev/null
+++ b/test/libsolidity/syntaxTests/parsing/invalid_variable_named_unicode.sol
@@ -0,0 +1,6 @@
+contract C
+{
+    string unicode = "abc";
+}
+// ----
+// ParserError 2314: (24-31): Expected identifier but got 'ILLEGAL'