diff --git a/CMakeLists.txt b/CMakeLists.txt
index 60db791..8fec137 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,5 +1,7 @@
 cmake_minimum_required (VERSION 3.1)
 
+project(ncl)
+
 if(MSVC)
   # Force to always compile with W4
   if(CMAKE_CXX_FLAGS MATCHES "/W[0-4]")
diff --git a/ncl/nxstaxablock.cpp b/ncl/nxstaxablock.cpp
index 10f2c8f..1fc40d3 100644
--- a/ncl/nxstaxablock.cpp
+++ b/ncl/nxstaxablock.cpp
@@ -276,7 +276,7 @@ void NxsTaxaBlock::CheckCapitalizedTaxonLabel(
 	if (dimNTax < ind)
 		{
 		NxsString e;
-		e << "Number of stored labels (" << taxLabels.size() << ") exceeds the NTax specified (" << dimNTax<<").";
+		e << "Number of stored labels (" << (unsigned)taxLabels.size() << ") exceeds the NTax specified (" << dimNTax<<").";
 		throw NxsException(e);
 		}
 	if (CapitalizedTaxLabelToNumber(s) != 0)