diff --git a/src/scripts/unix.sh b/src/scripts/unix.sh
index dc97bfb3c..a6ee32c92 100644
--- a/src/scripts/unix.sh
+++ b/src/scripts/unix.sh
@@ -53,6 +53,11 @@ read_env() {
   fail_fast="${fail_fast:-${FAIL_FAST:-false}}"
   [[ -z "${ImageOS}" && -z "${ImageVersion}" ]] && _runner=self-hosted || _runner=github
   runner="${runner:-${RUNNER:-$_runner}}"
+
+  if [[ "$runner" = "github" && $_runner = "self-hosted" ]]; then
+    fail_fast=true
+    add_log "$cross" "Runner" "Runner set as github in self-hosted environment"
+  fi
 }
 
 # Function to download a file using cURL.
diff --git a/src/scripts/win32.ps1 b/src/scripts/win32.ps1
index a3c2365ce..a074f03c8 100644
--- a/src/scripts/win32.ps1
+++ b/src/scripts/win32.ps1
@@ -259,7 +259,11 @@ if ( $env:GITHUB_ACTIONS -eq 'true') {
   $env:END_GROUP = ''
 }
 
-if($env:RUNNER -eq 'self-hosted' -or (-not($env:ImageOS) -and -not($env:ImageVersion))) {
+if(-not($env:ImageOS) -and -not($env:ImageVersion)) {
+  if($env:RUNNER -eq 'github') {
+    Add-Log $cross "Runner" "Runner set as github in self-hosted environment"
+    exit 1
+  }
   $bin_dir = 'C:\tools\bin'
   $php_dir = "$php_dir$version"
   $ext_dir = "$php_dir\ext"