diff --git a/.github/workflows/docker.yml b/.github/workflows/docker.yml
index b66d849..b6dc0e8 100644
--- a/.github/workflows/docker.yml
+++ b/.github/workflows/docker.yml
@@ -8,6 +8,7 @@ on:
       branch:
         description: 'Branch to extract from'
         type: string
+        default: 'master'
       login:
         description: 'Log in to Docker Hub'
         type: boolean
diff --git a/.github/workflows/msvcrt.yml b/.github/workflows/msvcrt.yml
index fd62ca1..fa32ad8 100644
--- a/.github/workflows/msvcrt.yml
+++ b/.github/workflows/msvcrt.yml
@@ -8,6 +8,7 @@ on:
       branch:
         description: 'Branch to extract from'
         type: string
+        default: 'master'
       upload:
         description: 'Upload the artifacts'
         type: boolean
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index fcc60bb..d603ec9 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -8,6 +8,7 @@ on:
       branch:
         description: 'Branch to extract from'
         type: string
+        default: 'master'
       tag:
         description: 'Tag to create/upload to'
         required: true
diff --git a/.github/workflows/test-libcxx.yml b/.github/workflows/test-libcxx.yml
index 6e83756..3af8b7f 100644
--- a/.github/workflows/test-libcxx.yml
+++ b/.github/workflows/test-libcxx.yml
@@ -8,6 +8,7 @@ on:
       branch:
         description: 'Branch to extract from'
         type: string
+        default: 'master'
       pipeline_type:
         description: 'Pipeline type'
         required: true
diff --git a/.github/workflows/test-llvm.yml b/.github/workflows/test-llvm.yml
index 4d50a73..d5955dc 100644
--- a/.github/workflows/test-llvm.yml
+++ b/.github/workflows/test-llvm.yml
@@ -8,6 +8,7 @@ on:
       branch:
         description: 'Branch to extract from'
         type: string
+        default: 'master'
       pipeline_type:
         description: 'Pipeline type'
         required: true