diff --git a/.github/workflows/debian.yml b/.github/workflows/debian.yml
index 2cd05a95c..79c25663e 100644
--- a/.github/workflows/debian.yml
+++ b/.github/workflows/debian.yml
@@ -43,7 +43,7 @@ jobs:
 
         # get ubuntu mainline source
         # see https://kernel.ubuntu.com/~kernel-ppa/mainline
-        git clone "$MAINLINE_REPO" --branch "$MAINLINE_BRANCH/v$KERNEL_VERSION" --depth 1 linux
+        git clone "$MAINLINE_REPO" --branch "$MAINLINE_BRANCH/v$KERNEL_VERSION" --single-branch
 
         cd linux
 
diff --git a/.github/workflows/debian_lts.yml b/.github/workflows/debian_lts.yml
index 9d2de7487..0b45fefc0 100644
--- a/.github/workflows/debian_lts.yml
+++ b/.github/workflows/debian_lts.yml
@@ -43,7 +43,7 @@ jobs:
 
         # get ubuntu mainline source
         # see https://kernel.ubuntu.com/~kernel-ppa/mainline
-        git clone "$MAINLINE_REPO" --branch "$MAINLINE_BRANCH/v$KERNEL_VERSION" --depth 1 linux
+        git clone "$MAINLINE_REPO" --branch "$MAINLINE_BRANCH/v$KERNEL_VERSION" --single-branch
 
         cd linux