diff --git a/libc/arch-arm/syscalls.mk b/libc/arch-arm/syscalls.mk
index 83e6a97..f039bcb 100644
--- a/libc/arch-arm/syscalls.mk
+++ b/libc/arch-arm/syscalls.mk
@@ -56,6 +56,7 @@
 syscall_src += arch-arm/syscalls/eventfd.S
 syscall_src += arch-arm/syscalls/execve.S
 syscall_src += arch-arm/syscalls/faccessat.S
+syscall_src += arch-arm/syscalls/fallocate64.S
 syscall_src += arch-arm/syscalls/fchdir.S
 syscall_src += arch-arm/syscalls/fchmod.S
 syscall_src += arch-arm/syscalls/fchmodat.S
diff --git a/libc/arch-arm/syscalls/fallocate64.S b/libc/arch-arm/syscalls/fallocate64.S
new file mode 100644
index 0000000..c6992b0
--- /dev/null
+++ b/libc/arch-arm/syscalls/fallocate64.S
@@ -0,0 +1,22 @@
+/* Generated by gensyscalls.py. Do not edit. */
+
+#include <private/bionic_asm.h>
+
+ENTRY(fallocate64)
+    mov     ip, sp
+    stmfd   sp!, {r4, r5, r6, r7}
+    .cfi_def_cfa_offset 16
+    .cfi_rel_offset r4, 0
+    .cfi_rel_offset r5, 4
+    .cfi_rel_offset r6, 8
+    .cfi_rel_offset r7, 12
+    ldmfd   ip, {r4, r5, r6}
+    ldr     r7, =__NR_fallocate
+    swi     #0
+    ldmfd   sp!, {r4, r5, r6, r7}
+    .cfi_def_cfa_offset 0
+    cmn     r0, #(MAX_ERRNO + 1)
+    bxls    lr
+    neg     r0, r0
+    b       __set_errno
+END(fallocate64)