diff --git a/appveyor.yml b/appveyor.yml
index 9ebaa5259..c2cd07820 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -22,13 +22,19 @@ os: Windows Server 2012
 matrix:
   fast_finish: true     # set this flag to immediately finish build once one of the jobs fails.
 
+environment:
+  COVERALLS_REPO_TOKEN:
+  secure: UQiSUNs39uWy45YG1iS9hatwF5ouX0Q2c
+
 #---------------------------------#
 #       build configuration       #
 #---------------------------------#
 
 # to run your custom scripts instead of automatic MSBuild
-build_script:
+before_build:
   - ps: Import-Module .\build\psake.psm1
+
+build_script:
   - ps: Invoke-Psake .\build\build.ps1 -properties @{"BuildNumber"=$env:APPVEYOR_BUILD_NUMBER}
 
 #---------------------------------#
diff --git a/build/build.ps1 b/build/build.ps1
index 57ed576ce..37c532ab5 100644
--- a/build/build.ps1
+++ b/build/build.ps1
@@ -22,6 +22,7 @@ Properties {
 	# External binaries paths
 	$NUGET_EXE = Join-Path $SRC_PATH ".nuget\NuGet.exe"
 	$NUNIT_EXE = Join-Path $SRC_PATH "packages\NUnit.Runners.2.6.3\tools\nunit-console.exe"
+	$COVERALLS_EXE = Join-Path $SRC_PATH "packages\coveralls.io.1.3.2\tools\coveralls.net.exe"
 	$OPENCOVER_EXE = Join-Path $SRC_PATH "packages\OpenCover.4.5.3207\OpenCover.Console.exe"
 	$REPORTGEN_EXE = Join-Path $SRC_PATH "packages\ReportGenerator.1.9.1.0\ReportGenerator.exe"
 	$NUNITREPORT_EXE = Join-Path $BUILD_PATH "tools\NUnitHTMLReportGenerator.exe"
@@ -39,7 +40,7 @@ Properties {
 Framework "4.0x86"
 FormatTaskName "-------- {0} --------"
 
-task default -depends Cleanup-Binaries, Set-VersionNumber, Build-Solution, Run-Tests, Generate-APIDoc, Generate-Nuget
+task default -depends Cleanup-Binaries, Set-VersionNumber, Build-Solution, Run-Tests, Run-Coverage, Generate-APIDoc, Generate-Nuget
 
 # cleans up the binaries output folder
 task Cleanup-Binaries {
@@ -157,6 +158,9 @@ task Run-Coverage -depends Build-Tests {
 		
 		Write-Host "Transforming coverage results file to HTML"
 		& $REPORTGEN_EXE -reports:$CoverageOutputPath -targetdir:(Join-Path $TEST_RESULTS "Coverage\$_")
+
+		Write-Host "Uploading coverage report to Coveralls.io"
+        Exec { . $COVERALLS_EXE --opencover $CoverageOutputPath }
 	}
 }
 
diff --git a/src/.nuget/packages.config b/src/.nuget/packages.config
index 9cfde32e1..232098461 100644
--- a/src/.nuget/packages.config
+++ b/src/.nuget/packages.config
@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
+  <package id="coveralls.io" version="1.3.2" />
   <package id="NUnit.Runners" version="2.6.3" />
   <package id="OpenCover" version="4.5.3207" />
   <package id="ReportGenerator" version="1.9.1.0" />