diff --git a/doc/notation.md b/doc/notation.md
index 8f6c544db0..d1e1b8203b 100644
--- a/doc/notation.md
+++ b/doc/notation.md
@@ -7,7 +7,7 @@ overloading existing) prefix, infix, and postfix operators.
 infixl:65   " + " => HAdd.hAdd  -- left-associative
 infix:50    " = " => Eq         -- non-associative
 infixr:80   " ^ " => HPow.hPow  -- right-associative
-prefix:100  "-"   => Neg.neg
+prefix:75  "-"   => Neg.neg
 # set_option quotPrecheck false
 postfix:max "⁻¹"  => Inv.inv
 ```
@@ -26,7 +26,7 @@ can make this more precise by looking at what the commands above unfold to:
 notation:65 lhs:65 " + " rhs:66 => HAdd.hAdd lhs rhs
 notation:50 lhs:51 " = " rhs:51 => Eq lhs rhs
 notation:80 lhs:81 " ^ " rhs:80 => HPow.hPow lhs rhs
-notation:100 "-" arg:100 => Neg.neg arg
+notation:75 "-" arg:75 => Neg.neg arg
 # set_option quotPrecheck false
 notation:1024 arg:1024 "⁻¹" => Inv.inv arg  -- `max` is a shorthand for precedence 1024
 ```
diff --git a/src/Init/Notation.lean b/src/Init/Notation.lean
index d2987cef6a..dd5ea506b3 100644
--- a/src/Init/Notation.lean
+++ b/src/Init/Notation.lean
@@ -263,7 +263,7 @@ syntax (name := rawNatLit) "nat_lit " num : term
 @[inherit_doc] infixl:75 " >>> " => HShiftRight.hShiftRight
 @[inherit_doc] infixr:80 " ^ "   => HPow.hPow
 @[inherit_doc] infixl:65 " ++ "  => HAppend.hAppend
-@[inherit_doc] prefix:100 "-"    => Neg.neg
+@[inherit_doc] prefix:75 "-"    => Neg.neg
 @[inherit_doc] prefix:100 "~~~"  => Complement.complement
 
 /-!