diff --git a/.editorconfig b/.editorconfig
index 5c2baf6..9035bef 100644
--- a/.editorconfig
+++ b/.editorconfig
@@ -8,5 +8,5 @@ indent_style = space
 insert_final_newline = true
 trim_trailing_whitespace = true
 
-[*.{h,hh,hpp,c,cc,cpp,cxx}]
+[*.{h,hh,hpp,c,cc,cpp,cxx,yml}]
 indent_size = 2
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 634dfc4..70f723f 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -25,10 +25,17 @@ file(GLOB_RECURSE MADDY_TESTS_FILES ${CMAKE_CURRENT_SOURCE_DIR}/tests/maddy/*.cp
 
 # ------------------------------------------------------------------------------
 
-set(
-  CMAKE_CXX_FLAGS
-  "${CMAKE_CXX_FLAGS} -g -std=c++${MADDY_CPP_VERSION} -Wall -Wpedantic -Wextra -Wno-ignored-qualifiers -fno-rtti -fno-exceptions -fsanitize=address -fno-omit-frame-pointer"
-)
+if (UNIX)
+  set(
+    CMAKE_CXX_FLAGS
+    "${CMAKE_CXX_FLAGS} -g -std=c++${MADDY_CPP_VERSION} -Wall -Wpedantic -Wextra -Wno-ignored-qualifiers -fno-rtti -fno-exceptions -fsanitize=address -fno-omit-frame-pointer"
+  )
+else()
+  set(
+    CMAKE_CXX_FLAGS
+    "${CMAKE_CXX_FLAGS} -std=c++${MADDY_CPP_VERSION}"
+  )
+endif()
 
 # ------------------------------------------------------------------------------
 
diff --git a/appveyor.yml b/appveyor.yml
new file mode 100644
index 0000000..e8842c3
--- /dev/null
+++ b/appveyor.yml
@@ -0,0 +1,15 @@
+image: Visual Studio 2017
+
+install:
+  - cmd: git submodule update --init --recursive
+
+before_build:
+  - cmd: mkdir tmp
+  - cmd: cd tmp
+  - cmd: cmake -G "Visual Studio 15 Win64" ..
+
+build:
+  project: $(APPVEYOR_BUILD_FOLDER)\tmp\$(APPVEYOR_PROJECT_NAME).sln
+
+test_script:
+  - cmd: ctest -VV -C "Debug"
diff --git a/include/maddy/blockparser.h b/include/maddy/blockparser.h
index 5aeed5f..9df4fa6 100644
--- a/include/maddy/blockparser.h
+++ b/include/maddy/blockparser.h
@@ -157,24 +157,26 @@ protected:
   {
     bool hasMetNonSpace = false;
 
-    uint32_t indentation = std::count_if(
-      line.begin(),
-      line.end(),
-      [&hasMetNonSpace](unsigned char c)
-      {
-        if (hasMetNonSpace)
+    uint32_t indentation = static_cast<uint32_t>(
+      std::count_if(
+        line.begin(),
+        line.end(),
+        [&hasMetNonSpace](unsigned char c)
         {
+          if (hasMetNonSpace)
+          {
+            return false;
+          }
+
+          if (std::isspace(c))
+          {
+            return true;
+          }
+
+          hasMetNonSpace = true;
           return false;
         }
-
-        if (std::isspace(c))
-        {
-          return true;
-        }
-
-        hasMetNonSpace = true;
-        return false;
-      }
+      )
     );
 
     return indentation;