diff --git a/src/parser/parser.cpp b/src/parser/parser.cpp
index 6b981b3e..88f2a9f0 100644
--- a/src/parser/parser.cpp
+++ b/src/parser/parser.cpp
@@ -24,6 +24,8 @@
 #include <pegtl/analyze.hh>
 #include <pegtl/trace.hh>
 
+#define string_operator_t(s) seq< pegtl_istring_t(s), not_at< identifier_other > >
+
 using namespace pegtl;
 
 namespace realm {
@@ -93,11 +95,11 @@ struct group_pred : if_must< one< '(' >, pad< pred, blank >, one< ')' > > {};
 struct true_pred : pegtl_istring_t("truepredicate") {};
 struct false_pred : pegtl_istring_t("falsepredicate") {};
 
-struct not_pre : seq< sor< one< '!' >, pegtl_istring_t("not") > > {};
+struct not_pre : seq< sor< one< '!' >, string_operator_t("not") > > {};
 struct atom_pred : seq< opt< not_pre >, pad< sor< group_pred, true_pred, false_pred, comparison_pred >, blank > > {};
 
-struct and_op : pad< sor< two< '&' >, pegtl_istring_t("and") >, blank > {};
-struct or_op : pad< sor< two< '|' >, pegtl_istring_t("or") >, blank > {};
+struct and_op : pad< sor< two< '&' >, string_operator_t("and") >, blank > {};
+struct or_op : pad< sor< two< '|' >, string_operator_t("or") >, blank > {};
 
 struct or_ext : if_must< or_op, pred > {};
 struct and_ext : if_must< and_op, pred > {};
diff --git a/tests/parser.cpp b/tests/parser.cpp
index 93d5f159..6062928e 100644
--- a/tests/parser.cpp
+++ b/tests/parser.cpp
@@ -66,6 +66,9 @@ static std::vector<std::string> valid_queries = {
     "!(0=0)",
     "! (0=0)",
     "NOT0=0",   // keypath NOT0
+    "NOT0.a=0", // keypath NOT0
+    "NOT0a.b=0", // keypath NOT0a
+    "not-1=1",
     "not 0=0",
     "NOT(0=0)",
     "not (0=0)",
@@ -121,6 +124,7 @@ static std::vector<std::string> invalid_queries = {
     "(0=0))",
     "! =0",
     "NOTNOT(0=0)",
+    "not.a=0",
     "(!!0=0)",
     "0=0 !",
 
@@ -130,7 +134,7 @@ static std::vector<std::string> invalid_queries = {
     "a==a &| a==a",
     "a==a && OR a==a",
     "a==aORa==a",
-    //"a=1ANDNOT b=2",
+    "a=1ANDNOT b=2",
 
     "truepredicate &&",
     "truepredicate & truepredicate",