diff --git a/src/tools/run-make-support/src/rustc.rs b/src/tools/run-make-support/src/rustc.rs
index dbcfca6feedb0..1b358817a7957 100644
--- a/src/tools/run-make-support/src/rustc.rs
+++ b/src/tools/run-make-support/src/rustc.rs
@@ -104,15 +104,6 @@ impl Rustc {
         self
     }
 
-    /// Generic file path provider.
-    pub fn arg_path<P>(&mut self, path: P) -> &mut Self
-    where
-        P: AsRef<Path>,
-    {
-        self.cmd.arg(path.as_ref());
-        self
-    }
-
     /// Specify the crate type.
     pub fn crate_type(&mut self, crate_type: &str) -> &mut Self {
         self.cmd.arg("--crate-type");
diff --git a/tests/run-make/core-no-fp-fmt-parse/rmake.rs b/tests/run-make/core-no-fp-fmt-parse/rmake.rs
index 36948f0564397..2748d4359c365 100644
--- a/tests/run-make/core-no-fp-fmt-parse/rmake.rs
+++ b/tests/run-make/core-no-fp-fmt-parse/rmake.rs
@@ -11,7 +11,7 @@ fn main() {
         .edition("2021")
         .arg("-Dwarnings")
         .crate_type("rlib")
-        .arg_path("../../../library/core/src/lib.rs")
+        .input("../../../library/core/src/lib.rs")
         .cfg("no_fp_fmt_parse")
         .run();
 }