diff --git a/externals/install-dotnet.sh b/externals/install-dotnet.sh
index 1479131..1903673 100755
--- a/externals/install-dotnet.sh
+++ b/externals/install-dotnet.sh
@@ -224,7 +224,7 @@ get_legacy_os_name() {
 machine_has() {
     eval $invocation
 
-    hash "$1" > /dev/null 2>&1
+    command -v "$1" > /dev/null 2>&1
     return $?
 }