diff --git a/library/core/src/num/f128.rs b/library/core/src/num/f128.rs
index 75eed2648588..129f62fb43d1 100644
--- a/library/core/src/num/f128.rs
+++ b/library/core/src/num/f128.rs
@@ -69,6 +69,7 @@ pub mod consts {
         0.564189583547756286948079451560772585844050629328998856844086_f128;
 
     /// 1/sqrt(2π)
+    #[doc(alias = "FRAC_1_SQRT_TAU")]
     #[unstable(feature = "f128", issue = "116909")]
     // Also, #[unstable(feature = "more_float_constants", issue = "103883")]
     pub const FRAC_1_SQRT_2PI: f128 =
diff --git a/library/core/src/num/f16.rs b/library/core/src/num/f16.rs
index 955314516a4a..7a488cd6bf6f 100644
--- a/library/core/src/num/f16.rs
+++ b/library/core/src/num/f16.rs
@@ -68,6 +68,7 @@ pub mod consts {
     pub const FRAC_1_SQRT_PI: f16 = 0.564189583547756286948079451560772586_f16;
 
     /// 1/sqrt(2π)
+    #[doc(alias = "FRAC_1_SQRT_TAU")]
     #[unstable(feature = "f16", issue = "116909")]
     // Also, #[unstable(feature = "more_float_constants", issue = "103883")]
     pub const FRAC_1_SQRT_2PI: f16 = 0.398942280401432677939946059934381868_f16;
diff --git a/library/core/src/num/f32.rs b/library/core/src/num/f32.rs
index 8c591af3c0d0..8e9c7b4d11f3 100644
--- a/library/core/src/num/f32.rs
+++ b/library/core/src/num/f32.rs
@@ -328,6 +328,7 @@ pub mod consts {
     pub const FRAC_1_SQRT_PI: f32 = 0.564189583547756286948079451560772586_f32;
 
     /// 1/sqrt(2π)
+    #[doc(alias = "FRAC_1_SQRT_TAU")]
     #[unstable(feature = "more_float_constants", issue = "103883")]
     pub const FRAC_1_SQRT_2PI: f32 = 0.398942280401432677939946059934381868_f32;
 
diff --git a/library/core/src/num/f64.rs b/library/core/src/num/f64.rs
index db458c4375ce..5247897437a0 100644
--- a/library/core/src/num/f64.rs
+++ b/library/core/src/num/f64.rs
@@ -328,6 +328,7 @@ pub mod consts {
     pub const FRAC_1_SQRT_PI: f64 = 0.564189583547756286948079451560772586_f64;
 
     /// 1/sqrt(2π)
+    #[doc(alias = "FRAC_1_SQRT_TAU")]
     #[unstable(feature = "more_float_constants", issue = "103883")]
     pub const FRAC_1_SQRT_2PI: f64 = 0.398942280401432677939946059934381868_f64;