diff --git a/src/libcore/num/mod.rs b/src/libcore/num/mod.rs
index c164e893b4fbf..d73ec11d2e5d6 100644
--- a/src/libcore/num/mod.rs
+++ b/src/libcore/num/mod.rs
@@ -5,6 +5,7 @@
 #![stable(feature = "rust1", since = "1.0.0")]
 
 use crate::convert::Infallible;
+use crate::convert::TryFrom;
 use crate::fmt;
 use crate::intrinsics;
 use crate::mem;
@@ -111,6 +112,14 @@ assert_eq!(size_of::<Option<core::num::", stringify!($Ty), ">>(), size_of::<", s
                 }
             }
 
+            #[stable(feature = "try_from", since = "1.34.0")]
+            impl TryFrom<$Int> for $Ty {
+               type Error = TryFromIntError;
+               fn try_from(n: $Int) -> Result<Self, Self::Error> {
+                   Self::new(n).ok_or(TryFromIntError(()))
+               }
+            }
+
             #[stable(feature = "nonzero_bitor", since = "1.45.0")]
             impl BitOr for $Ty {
                 type Output = Self;