diff --git a/lib/rbs/ast/ruby/annotations.rb b/lib/rbs/ast/ruby/annotations.rb
index f8f0bed24..9c3ee0bc8 100644
--- a/lib/rbs/ast/ruby/annotations.rb
+++ b/lib/rbs/ast/ruby/annotations.rb
@@ -274,6 +274,15 @@ def map_type_name(&block)
               comment_location: comment_location
             ) #: self
           end
+
+          def type_fingerprint
+            [
+              "annots/param_type",
+              name_location.source,
+              param_type.to_s,
+              comment_location&.source
+            ]
+          end
         end
 
         class SplatParamTypeAnnotation < Base
@@ -299,6 +308,15 @@ def map_type_name(&block)
               comment_location: comment_location
             ) #: self
           end
+
+          def type_fingerprint
+            [
+              "annots/splat_param_type",
+              name_location&.source,
+              param_type.to_s,
+              comment_location&.source
+            ]
+          end
         end
 
         class DoubleSplatParamTypeAnnotation < Base
@@ -324,6 +342,15 @@ def map_type_name(&block)
               comment_location: comment_location
             ) #: self
           end
+
+          def type_fingerprint
+            [
+              "annots/double_splat_param_type",
+              name_location&.source,
+              param_type.to_s,
+              comment_location&.source
+            ]
+          end
         end
 
         class BlockParamTypeAnnotation < Base
@@ -365,6 +392,16 @@ def optional?
           def required?
             !optional?
           end
+
+          def type_fingerprint
+            [
+              "annots/block_param_type",
+              name_location&.source,
+              type.to_s,
+              optional? ? "optional" : "required",
+              comment_location&.source
+            ]
+          end
         end
       end
     end
diff --git a/lib/rbs/ast/ruby/members.rb b/lib/rbs/ast/ruby/members.rb
index f035d6787..878baa39b 100644
--- a/lib/rbs/ast/ruby/members.rb
+++ b/lib/rbs/ast/ruby/members.rb
@@ -275,7 +275,7 @@ def type_fingerprint
                 return_type_annotation&.type_fingerprint,
                 all_param_annotations.map do |param|
                   case param
-                  when Annotations::ParamTypeAnnotation
+                  when Annotations::Base
                     param.type_fingerprint
                   else
                     param
diff --git a/sig/ast/ruby/annotations.rbs b/sig/ast/ruby/annotations.rbs
index 59be65bc5..ac3c25e88 100644
--- a/sig/ast/ruby/annotations.rbs
+++ b/sig/ast/ruby/annotations.rbs
@@ -257,6 +257,8 @@ module RBS
 
           def map_type_name: () { (TypeName) -> TypeName } -> self
 
+          def type_fingerprint: () -> untyped
+
           %a{pure}
           def name: () -> Symbol
         end
@@ -302,6 +304,8 @@ module RBS
 
           def map_type_name: () { (TypeName) -> TypeName } -> self
 
+          def type_fingerprint: () -> untyped
+
           %a{pure}
           def name: () -> Symbol?
         end
@@ -347,6 +351,8 @@ module RBS
 
           def map_type_name: () { (TypeName) -> TypeName } -> self
 
+          def type_fingerprint: () -> untyped
+
           %a{pure}
           def name: () -> Symbol?
         end
@@ -401,6 +407,8 @@ module RBS
 
           def map_type_name: () { (TypeName) -> TypeName } -> self
 
+          def type_fingerprint: () -> untyped
+
           %a{pure} def name: () -> Symbol?
 
           def optional?: () -> bool