diff --git a/libc/arch-arm/syscalls/__fchmod.S b/libc/arch-arm/syscalls/___fchmod.S
similarity index 84%
rename from libc/arch-arm/syscalls/__fchmod.S
rename to libc/arch-arm/syscalls/___fchmod.S
index ff888a1..c6da4f8 100644
--- a/libc/arch-arm/syscalls/__fchmod.S
+++ b/libc/arch-arm/syscalls/___fchmod.S
@@ -2,7 +2,7 @@
 
 #include <private/bionic_asm.h>
 
-ENTRY(__fchmod)
+ENTRY(___fchmod)
     mov     ip, r7
     ldr     r7, =__NR_fchmod
     swi     #0
@@ -11,4 +11,5 @@
     bxls    lr
     neg     r0, r0
     b       __set_errno_internal
-END(__fchmod)
+END(___fchmod)
+.hidden ___fchmod
diff --git a/libc/arch-arm/syscalls/__fchmodat.S b/libc/arch-arm/syscalls/___fchmodat.S
similarity index 82%
rename from libc/arch-arm/syscalls/__fchmodat.S
rename to libc/arch-arm/syscalls/___fchmodat.S
index 4d10f00..91bbda5 100644
--- a/libc/arch-arm/syscalls/__fchmodat.S
+++ b/libc/arch-arm/syscalls/___fchmodat.S
@@ -2,7 +2,7 @@
 
 #include <private/bionic_asm.h>
 
-ENTRY(__fchmodat)
+ENTRY(___fchmodat)
     mov     ip, r7
     ldr     r7, =__NR_fchmodat
     swi     #0
@@ -11,4 +11,5 @@
     bxls    lr
     neg     r0, r0
     b       __set_errno_internal
-END(__fchmodat)
+END(___fchmodat)
+.hidden ___fchmodat