diff --git a/build.rs b/build.rs
index 0ecd39911..f05c310ee 100644
--- a/build.rs
+++ b/build.rs
@@ -533,10 +533,6 @@ mod c {
                 ("__fe_getround", "fp_mode.c"),
                 ("__fe_raise_inexact", "fp_mode.c"),
             ]);
-
-            if target_os != "windows" {
-                sources.extend(&[("__multc3", "multc3.c")]);
-            }
         }
 
         if target_arch == "mips" || target_arch == "riscv32" || target_arch == "riscv64" {