diff --git a/library/std/src/sys/hermit/mod.rs b/library/std/src/sys/hermit/mod.rs
index 6811fadb018..20fd3dd8f09 100644
--- a/library/std/src/sys/hermit/mod.rs
+++ b/library/std/src/sys/hermit/mod.rs
@@ -72,11 +72,6 @@ pub fn unsupported_err() -> crate::io::Error {
     )
 }
 
-#[no_mangle]
-pub extern "C" fn floor(x: f64) -> f64 {
-    unsafe { intrinsics::floorf64(x) }
-}
-
 pub fn abort_internal() -> ! {
     unsafe {
         abi::abort();