diff --git a/ruby/ruby_internal_arithmetic_int.go b/ruby/ruby_internal_arithmetic_int.go
index f334b419..33a32824 100644
--- a/ruby/ruby_internal_arithmetic_int.go
+++ b/ruby/ruby_internal_arithmetic_int.go
@@ -7,12 +7,12 @@ import "C"
 
 // c.f. https://github.com/ruby/ruby/blob/master/include/ruby/internal/arithmetic/int.h
 
-// NUM2INT is alias to [RbNum2intInline]
+// NUM2INT is alias to [RbNum2IntInline]
 func NUM2INT(x VALUE) int {
 	return RbNum2IntInline(x)
 }
 
-// INT2NUM is alias to [RbInt2numInline]
+// INT2NUM is alias to [RbInt2NumInline]
 func INT2NUM(v int) VALUE {
 	return RbInt2NumInline(v)
 }
diff --git a/ruby/ruby_internal_arithmetic_long.go b/ruby/ruby_internal_arithmetic_long.go
index a9638e96..ebb69bb5 100644
--- a/ruby/ruby_internal_arithmetic_long.go
+++ b/ruby/ruby_internal_arithmetic_long.go
@@ -7,12 +7,12 @@ import "C"
 
 // c.f. https://github.com/ruby/ruby/blob/master/include/ruby/internal/arithmetic/long.h
 
-// NUM2LONG is alias to [RbNum2long]
+// NUM2LONG is alias to [RbNum2Long]
 func NUM2LONG(num VALUE) Long {
 	return RbNum2Long(num)
 }
 
-// LONG2NUM is alias to [RbLong2numInline]
+// LONG2NUM is alias to [RbLong2NumInline]
 func LONG2NUM(v Long) VALUE {
 	return RbLong2NumInline(v)
 }