diff --git a/Piece.cpp b/Piece.cpp
index 79c09e6..2ced144 100644
--- a/Piece.cpp
+++ b/Piece.cpp
@@ -58,7 +58,7 @@ std::vector<Move> Rook::getLegalMoves(const Square &from, const Board &board) co
             if (!target) {
                 moveList.push_back({from,
                     targetSquare});
-            } else if (target->getColour() != this->getColour()) {
+            } else if (target && target->getColour() != this->getColour()) {
                 moveList.push_back({from,
                     targetSquare});
                 break;
diff --git a/nbproject/configurations.xml b/nbproject/configurations.xml
index 5295c65..fb8d13d 100644
--- a/nbproject/configurations.xml
+++ b/nbproject/configurations.xml
@@ -39,6 +39,10 @@
       <itemPath>NeoPixel.cpp</itemPath>
     </logicalFolder>
   </logicalFolder>
+  <sourceRootList>
+    <Elem>.</Elem>
+    <Elem>inc</Elem>
+  </sourceRootList>
   <projectmakefile>Makefile</projectmakefile>
   <confs>
     <conf name="Debug" type="2">
diff --git a/nbproject/project.xml b/nbproject/project.xml
index 50d0ea8..23e2470 100644
--- a/nbproject/project.xml
+++ b/nbproject/project.xml
@@ -8,7 +8,10 @@
             <make-project-type>0</make-project-type>
             <sourceEncoding>UTF-8</sourceEncoding>
             <make-dep-projects/>
-            <sourceRootList/>
+            <sourceRootList>
+                <sourceRootElem>.</sourceRootElem>
+                <sourceRootElem>inc</sourceRootElem>
+            </sourceRootList>
             <confList>
                 <confElem>
                     <name>Debug</name>