diff --git a/CMakeLists.txt b/CMakeLists.txt
index a536ec54..6cd50c57 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -227,12 +227,9 @@ COLLECT_FILES(false shaders src/glsl .glsl)
 
 IF(WIN32)
   set ( os_sources
-        include/win/StackWalker.cpp
-      )
-
+        include/win/StackWalker.cpp)
   set ( os_headers
-        include/win/StackWalker.h
-          src/noggit/ui/hole_tool.cpp src/noggit/ui/hole_tool.hpp)
+        include/win/StackWalker.h)
 ENDIF(WIN32)
 
 COLLECT_FILES(true headers_to_moc src/noggit ".h;.hpp")
diff --git a/src/noggit/ui/hole_tool.cpp b/src/noggit/ui/hole_tool.cpp
index 7f59a051..528431e4 100644
--- a/src/noggit/ui/hole_tool.cpp
+++ b/src/noggit/ui/hole_tool.cpp
@@ -1,5 +1,6 @@
 // This file is part of Noggit3, licensed under GNU General Public License (version 3).
 #include "hole_tool.hpp"
+#include <cmath>
 
 #include <QtWidgets/QVBoxLayout>
 #include <QtWidgets/QFormLayout>