diff --git a/builtin/bigint_nonjs.mbt b/builtin/bigint_nonjs.mbt
index 22d55389e..7f0ca4671 100644
--- a/builtin/bigint_nonjs.mbt
+++ b/builtin/bigint_nonjs.mbt
@@ -588,7 +588,7 @@ pub fn to_string(self : BigInt) -> String {
   // This is an approximation of the number of slots needed to represent the decimal value.
   let decimal_len = ((self.len * radix_bit_len).to_double() *
     decimal_ratio /
-    decimal_radix_bit_len.to_double()).unchecked_to_int() +
+    decimal_radix_bit_len.to_double()).to_unchecked_int() +
     1
   let s = if self.sign == Negative { "-" } else { "" }
   let v = Array::make(decimal_len, 0L)
@@ -637,7 +637,7 @@ pub fn BigInt::from_string(input : String) -> BigInt {
   }
   let sign : Sign = if input[0] == '-' { Negative } else { Positive }
   let mut b_len = (
-      (len.to_double() / decimal_ratio).unchecked_to_int() + 1 + radix_bit_len
+      (len.to_double() / decimal_ratio).to_unchecked_int() + 1 + radix_bit_len
     ) /
     radix_bit_len +
     1
diff --git a/builtin/double.mbt b/builtin/double.mbt
index 369a7dfe8..805bfea3c 100644
--- a/builtin/double.mbt
+++ b/builtin/double.mbt
@@ -48,6 +48,6 @@ pub fn Double::to_int(self : Double) -> Int {
   } else if self <= -2147483648 {
     -2147483648
   } else {
-    self.unchecked_to_int()
+    self.to_unchecked_int()
   }
 }
diff --git a/builtin/intrinsics.mbt b/builtin/intrinsics.mbt
index 3f50193c2..3e880b6cb 100644
--- a/builtin/intrinsics.mbt
+++ b/builtin/intrinsics.mbt
@@ -189,7 +189,7 @@ pub fn Double::compare(self : Double, other : Double) -> Int = "%f64_compare"
 pub fn Double::default() -> Double = "%f64_default"
 
 ///|
-fn Double::unchecked_to_int(self : Double) -> Int = "%f64_to_i32"
+fn Double::to_unchecked_int(self : Double) -> Int = "%f64_to_i32"
 
 ///|
 pub fn Double::convert_uint(val : UInt) -> Double = "%u32.to_f64"
diff --git a/float/float.mbt b/float/float.mbt
index c301d02b3..2709ad8af 100644
--- a/float/float.mbt
+++ b/float/float.mbt
@@ -46,7 +46,7 @@ pub fn Float::default() -> Float {
 }
 
 ///|
-fn Float::unchecked_to_int(self : Float) -> Int = "%f32.to_i32"
+fn Float::to_unchecked_int(self : Float) -> Int = "%f32.to_i32"
 
 ///|
 /// Converts a floating-point number to an integer, with proper handling of
@@ -81,6 +81,6 @@ pub fn Float::to_int(self : Float) -> Int {
   } else if self <= -2147483648 {
     -2147483648
   } else {
-    self.unchecked_to_int()
+    self.to_unchecked_int()
   }
 }