diff --git a/configure.ac b/configure.ac
index 48705c9..714970d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -160,7 +160,7 @@ AC_ARG_ENABLE(external_default_callbacks,
 AC_ARG_WITH([test-override-wide-multiply], [] ,[set_widemul=$withval], [set_widemul=auto])
 
 AC_ARG_WITH([asm], [AS_HELP_STRING([--with-asm=x86_64|arm|no|auto],
-[assembly optimizations to use (experimental: arm) [default=auto]])],[req_asm=$withval], [req_asm=auto])
+[assembly optimizations to use (experimental: arm) [default=auto]])],[req_asm=$withval], [req_asm=auto])
 
 AC_ARG_WITH([ecmult-window], [AS_HELP_STRING([--with-ecmult-window=SIZE|auto],
 [window size for ecmult precomputation for verification, specified as integer in range [2..24].]
diff --git a/include/secp256k1.h b/include/secp256k1.h
index 576953f..57114b8 100644
--- a/include/secp256k1.h
+++ b/include/secp256k1.h
@@ -264,7 +264,7 @@ SECP256K1_API void secp256k1_context_destroy(
  *  undefined.
  *
  *  When this function has not been called (or called with fn==NULL), then the
- *  default handler will be used. The library provides a default handler which
+ *  default handler will be used. The library provides a default handler which
  *  writes the message to stderr and calls abort. This default handler can be
  *  replaced at link time if the preprocessor macro
  *  USE_EXTERNAL_DEFAULT_CALLBACKS is defined, which is the case if the build