diff --git a/src/emacs/lean-syntax.el b/src/emacs/lean-syntax.el
index 890dbf621..0e4b8a975 100644
--- a/src/emacs/lean-syntax.el
+++ b/src/emacs/lean-syntax.el
@@ -55,7 +55,7 @@
            "class" "parsing_only" "coercion" "unfold_full" "constructor"
            "reducible" "irreducible" "semireducible" "quasireducible" "wf"
            "whnf" "multiple_instances" "none" "decls" "declarations"
-           "coercions" "classes" "symm" "subst" "refl" "trans" "simp" "congr" "backward"
+           "coercions" "classes" "symm" "subst" "refl" "trans" "simp" "simps" "congr" "backward"
            "forward" "no_pattern" "notations" "abbreviations" "begin_end_hints" "tactic_hints"
            "reduce_hints" "unfold_hints" "aliases" "eqv"
            "localrefinfo" "recursor"))
diff --git a/src/library/blast/simplifier/simp_rule_set.cpp b/src/library/blast/simplifier/simp_rule_set.cpp
index db2a7b394..1722b45bc 100644
--- a/src/library/blast/simplifier/simp_rule_set.cpp
+++ b/src/library/blast/simplifier/simp_rule_set.cpp
@@ -578,8 +578,8 @@ io_state_stream const & operator<<(io_state_stream const & out, simp_rule_sets c
 
 void initialize_simplifier_rule_set() {
     g_prefix     = new name(name::mk_internal_unique_name());
-    g_class_name = new name("rrs");
-    g_key        = new std::string("rrs");
+    g_class_name = new name("simps");
+    g_key        = new std::string("simp");
     rrs_ext::initialize();
 }
 
diff --git a/tests/lean/run/blast_simp_sum.lean b/tests/lean/run/blast_simp_sum.lean
index 3fecca1cf..f124a239f 100644
--- a/tests/lean/run/blast_simp_sum.lean
+++ b/tests/lean/run/blast_simp_sum.lean
@@ -1,5 +1,5 @@
 import data.nat
-open - [rrs] nat
+open - [simps] nat
 
 definition Sum : nat → (nat → nat) → nat :=
 sorry