diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 371a72f1..bc115ac5 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -78,6 +78,7 @@ jobs:
           ./ObjLoadingTests
           ./ObjWritingTests
           ./ParserTests
+          ./SystemTests
           ./ZoneCodeGeneratorLibTests
           ./ZoneCommonTests
 
@@ -138,6 +139,8 @@ jobs:
           $combinedExitCode = [System.Math]::max($combinedExitCode, $LASTEXITCODE)
           ./ParserTests
           $combinedExitCode = [System.Math]::max($combinedExitCode, $LASTEXITCODE)
+          ./SystemTests
+          $combinedExitCode = [System.Math]::max($combinedExitCode, $LASTEXITCODE)
           ./ZoneCodeGeneratorLibTests
           $combinedExitCode = [System.Math]::max($combinedExitCode, $LASTEXITCODE)
           ./ZoneCommonTests