diff --git a/build.rs b/build.rs
index 057f5d9..9a7c05e 100644
--- a/build.rs
+++ b/build.rs
@@ -311,6 +311,10 @@ mod c {
                 ],
             );
 
+            if target_os == "freebsd" {
+                sources.extend(&["clear_cache.c"]);
+            }
+            
             // First of all aeabi_cdcmp and aeabi_cfcmp are never called by LLVM.
             // Second are little-endian only, so build fail on big-endian targets.
             // Temporally workaround: exclude these files for big-endian targets.