diff --git a/lib/libc/musl/arch/hexagon/crt_arch.h b/lib/libc/musl/arch/hexagon/crt_arch.h
index 9f9428cf1927a98bcd5aac0bf8c90cdb87747c73..395b38d158059480f0bf532f5e6440abe58d618f 100644
--- a/lib/libc/musl/arch/hexagon/crt_arch.h
+++ b/lib/libc/musl/arch/hexagon/crt_arch.h
@@ -13,6 +13,7 @@ START ": \n"
 "       r1 = memw(r2)\n"
 "       r1 = add(r2, r1)\n"
 "	r30 = #0			// Signals the end of backtrace\n"
+"	r31 = #0\n"
 "	r0 = r29			// Pointer to argc/argv\n"
 "	r29 = and(r29, #-16)		// Align\n"
 "	memw(r29+#-8) = r29\n"
diff --git a/lib/libc/musl/src/thread/hexagon/clone.s b/lib/libc/musl/src/thread/hexagon/clone.s
index 42aab67a375923b106c51d77a0a617fadbeefce1..b91bda60eb24c11ed318c5385508496de1dd96ab 100644
--- a/lib/libc/musl/src/thread/hexagon/clone.s
+++ b/lib/libc/musl/src/thread/hexagon/clone.s
@@ -29,6 +29,9 @@ __clone:
 	p0 = cmp.eq(r0, #0)
 	if (!p0) dealloc_return
 
+	{ r30 = #0
+	  r31 = #0 }
+
 	{ r0 = r10
 	  callr r11 }