diff --git a/core/complex.rbs b/core/complex.rbs
index 5977828df..2ed7338b0 100644
--- a/core/complex.rbs
+++ b/core/complex.rbs
@@ -535,8 +535,6 @@ class Complex < Numeric
 
   def negative?: () -> bot
 
-  def nonzero?: () -> self?
-
   # <!--
   #   rdoc-file=complex.c
   #   - numerator -> new_complex
diff --git a/core/float.rbs b/core/float.rbs
index 64f896c38..cf6ff367e 100644
--- a/core/float.rbs
+++ b/core/float.rbs
@@ -737,8 +737,6 @@ class Float < Numeric
   #
   def next_float: () -> Float
 
-  def nonzero?: () -> self?
-
   # <!--
   #   rdoc-file=rational.c
   #   - flo.numerator  ->  integer
diff --git a/core/integer.rbs b/core/integer.rbs
index e7eb88866..577ee7e79 100644
--- a/core/integer.rbs
+++ b/core/integer.rbs
@@ -1015,8 +1015,6 @@ class Integer < Numeric
   #
   def nobits?: (int mask) -> bool
 
-  def nonzero?: () -> self?
-
   # <!--
   #   rdoc-file=numeric.rb
   #   - numerator -> self
diff --git a/core/rational.rbs b/core/rational.rbs
index b501c1981..ff34e033f 100644
--- a/core/rational.rbs
+++ b/core/rational.rbs
@@ -336,8 +336,6 @@ class Rational < Numeric
   #
   def negative?: () -> bool
 
-  def nonzero?: () -> self?
-
   # <!--
   #   rdoc-file=rational.c
   #   - rat.numerator  ->  integer