diff --git a/AI/VCAI/AIUtility.cpp b/AI/VCAI/AIUtility.cpp
index 3d614b34c..854196ad8 100644
--- a/AI/VCAI/AIUtility.cpp
+++ b/AI/VCAI/AIUtility.cpp
@@ -180,7 +180,7 @@ void foreach_neighbour(CCallback * cbp, const int3 & pos, std::function<void(CCa
 	}
 }
 
-bool CDistanceSorter::operator()(const CGObjectInstance * lhs, const CGObjectInstance * rhs)
+bool CDistanceSorter::operator()(const CGObjectInstance * lhs, const CGObjectInstance * rhs) const
 {
 	const CGPathNode * ln = ai->myCb->getPathsInfo(hero)->getPathInfo(lhs->visitablePos());
 	const CGPathNode * rn = ai->myCb->getPathsInfo(hero)->getPathInfo(rhs->visitablePos());
diff --git a/AI/VCAI/AIUtility.h b/AI/VCAI/AIUtility.h
index 6c2d6414f..6e260f56e 100644
--- a/AI/VCAI/AIUtility.h
+++ b/AI/VCAI/AIUtility.h
@@ -186,5 +186,5 @@ public:
 		: hero(hero)
 	{
 	}
-	bool operator()(const CGObjectInstance * lhs, const CGObjectInstance * rhs);
-};
\ No newline at end of file
+	bool operator()(const CGObjectInstance * lhs, const CGObjectInstance * rhs) const;
+};
diff --git a/CMakeLists.txt b/CMakeLists.txt
index ea33746a9..0ce259f80 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -154,6 +154,9 @@ if(WIN32)
 		# Reported to Microsoft here:
 		# https://developercommunity.visualstudio.com/content/problem/224597/linker-failing-because-of-multiple-definitions-of.html
 		set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} /FORCE:MULTIPLE")
+
+		# Required at least for compatibility with Boost 1.68 on Vcpkg
+		set(SYSTEM_LIBS ${SYSTEM_LIBS} bcrypt)
 	endif(MSVC)
 
 	if(MINGW)