diff --git a/ChangeLog b/ChangeLog
index 3cce6d8a8..318860a4e 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -14,6 +14,11 @@ Changes
      Inserted as an enhancement for #1371
    * Add support for alternative CSR headers, as used by Microsoft and defined
      in RFC 7468. Found by Michael Ernst. Fixes #767.
+   * Fix clobber list in MIPS assembly for large integer multiplication.
+     Previously, this could lead to functionally incorrect assembly being
+     produced by some optimizing compilers, showing up as failures in
+     e.g. RSA or ECC signature operations. Reported in #1722, fix suggested
+     by Aurelien Jarno and submitted by Jeffrey Martin.
 
 = mbed TLS 2.7.9 branch released 2018-12-21
 
diff --git a/include/mbedtls/bn_mul.h b/include/mbedtls/bn_mul.h
index dbdc0a323..3a254aae9 100644
--- a/include/mbedtls/bn_mul.h
+++ b/include/mbedtls/bn_mul.h
@@ -740,7 +740,7 @@
         "sw     $10, %2         \n\t"   \
         : "=m" (c), "=m" (d), "=m" (s)                      \
         : "m" (s), "m" (d), "m" (c), "m" (b)                \
-        : "$9", "$10", "$11", "$12", "$13", "$14", "$15"    \
+        : "$9", "$10", "$11", "$12", "$13", "$14", "$15", "lo", "hi" \
     );
 
 #endif /* MIPS */