diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index ac86f8199..5645a2f8e 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -97,8 +97,8 @@ jobs:
         if [ '${{ runner.os }}' == 'macOS' ]; then
           amount=3
         fi
-        # the Actions runner does not seem to be happy with two jobs at once on MinGW
-        if [ '${{ matrix.config.compiler }}' == 'mingw' ]; then
+        # the Actions runner does not seem to be happy with two jobs at once on MinGW/Ubuntu
+        if [ '${{ runner.os }}' == 'Linux' ]; then
           amount=1
         fi