diff --git a/src/c/encoding/binary-xml-encoder.c b/src/c/encoding/binary-xml-encoder.c
index 961c274..e27cbbc 100644
--- a/src/c/encoding/binary-xml-encoder.c
+++ b/src/c/encoding/binary-xml-encoder.c
@@ -183,7 +183,7 @@
 
   // Bottom 4 bits of value go in last byte with tag.
   self->output->array[self->offset + nEncodingBytes - 1] = 
-    (ndn_BinaryXml_TT_MASK & type | 
+    ((ndn_BinaryXml_TT_MASK & type) | 
     ((ndn_BinaryXml_TT_VALUE_MASK & value) << ndn_BinaryXml_TT_BITS)) |
     ndn_BinaryXml_TT_FINAL; // set top bit for last byte
   value >>= ndn_BinaryXml_TT_VALUE_BITS;
diff --git a/src/c/encoding/binary-xml-interest.c b/src/c/encoding/binary-xml-interest.c
index 48d3fe0..00da3e4 100644
--- a/src/c/encoding/binary-xml-interest.c
+++ b/src/c/encoding/binary-xml-interest.c
@@ -205,8 +205,8 @@
       (decoder, ndn_BinaryXml_DTag_Scope, &interest->scope)))
     return error;
   
-  if (error= ndn_BinaryXmlDecoder_readOptionalTimeMillisecondsDTagElement
-      (decoder, ndn_BinaryXml_DTag_InterestLifetime, &interest->interestLifetimeMilliseconds))
+  if ((error = ndn_BinaryXmlDecoder_readOptionalTimeMillisecondsDTagElement
+       (decoder, ndn_BinaryXml_DTag_InterestLifetime, &interest->interestLifetimeMilliseconds)))
     return error;
   
   if ((error = ndn_BinaryXmlDecoder_readOptionalBinaryDTagElement