diff --git a/.github/workflows/c2v.yml b/.github/workflows/c2v.yml
index d7b5da5561..8ffabdab6c 100644
--- a/.github/workflows/c2v.yml
+++ b/.github/workflows/c2v.yml
@@ -65,6 +65,7 @@ jobs:
       VFLAGS: -cc tcc
       DISPLAY: :99
       LIBGL_ALWAYS_SOFTWARE: true
+      VTMP: /tmp
     steps:
       - uses: actions/checkout@v2
       - name: Build V
diff --git a/.github/workflows/gg_regressions_ci.yml b/.github/workflows/gg_regressions_ci.yml
index 474820ca08..9506671230 100644
--- a/.github/workflows/gg_regressions_ci.yml
+++ b/.github/workflows/gg_regressions_ci.yml
@@ -17,6 +17,7 @@ jobs:
       VFLAGS: -cc tcc
       DISPLAY: :99
       LIBGL_ALWAYS_SOFTWARE: true
+      VTMP: /tmp
     steps:
       - name: Checkout V
         uses: actions/checkout@v2