diff --git a/lua/parser-smoke.sh b/lua/parser-smoke.sh
index 2f9ee69f..95f69ec4 100755
--- a/lua/parser-smoke.sh
+++ b/lua/parser-smoke.sh
@@ -55,6 +55,7 @@ good "a.g in (1, 'a', b.c)"
 good "a.b = a.a"
 
 bad "a.g in ()"
+bad "a.b = b = 1"
 bad "(a.b = 1"
 # Macros
 
diff --git a/lua/sysdig-parser.lua b/lua/sysdig-parser.lua
index a68b9e50..e27a04ca 100644
--- a/lua/sysdig-parser.lua
+++ b/lua/sysdig-parser.lua
@@ -216,7 +216,7 @@ local G = {
   Number = C(V"Hex" + V"Float" + V"Int") /
            function (n) return tonumber(n) end;
   String = (P'"' * C(((P'\\' * P(1)) + (P(1) - P'"'))^0) * P'"' +  P"'" * C(((P"\\" * P(1)) + (P(1) - P"'"))^0) * P"'")  / function (s) return fix_str(s) end;
-  BareString = C(((P(1) - S' (),'))^1);
+  BareString = C(((P(1) - S' (),='))^1);
 
   OrOp = kw("or") / "or";
   AndOp = kw("and") / "and";