diff --git a/src/scripts/extensions/blackfire.sh b/src/scripts/extensions/blackfire.sh
index bea20f24..e06fa3a1 100644
--- a/src/scripts/extensions/blackfire.sh
+++ b/src/scripts/extensions/blackfire.sh
@@ -8,6 +8,10 @@ add_blackfire() {
   status='Enabled'
   if ! shared_extension blackfire; then
     status='Installed and enabled'
+    arch="$(uname -m)"
+    arch_name="amd64"
+    [[ "$arch" = "aarch64" || "$arch" = "arm64" ]] && arch_name="arm64"
+    [ "${ts:?}" = 'zts' ] && no_dot_version="${no_dot_version}-zts"
     if [ "$extension_version" = "blackfire" ]; then
       if [[ ${version:?} =~ 5.[3-6] ]]; then
         extension_version='1.50.0'
@@ -15,10 +19,14 @@ add_blackfire() {
         extension_version=$(get -s -n "" https://blackfire.io/api/v1/releases | grep -Eo 'php":"([0-9]+.[0-9]+.[0-9]+)' | cut -d '"' -f 3)
       fi
     fi
-    get -q -n "${ext_dir:?}/blackfire.so" https://packages.blackfire.io/binaries/blackfire-php/"$extension_version"/blackfire-php-"$platform"_amd64-php-"$no_dot_version".so >/dev/null 2>&1
+    get -q -n "${ext_dir:?}/blackfire.so" https://packages.blackfire.io/binaries/blackfire-php/"$extension_version"/blackfire-php-"$platform"_"$arch_name"-php-"$no_dot_version".so >/dev/null 2>&1
+  fi
+  if [ -e "${ext_dir:?}/blackfire.so" ]; then
+    disable_extension xdebug >/dev/null 2>&1
+    disable_extension pcov >/dev/null 2>&1
+    enable_extension blackfire extension
+    add_extension_log blackfire "$status"
+  else
+    add_extension_log blackfire "Could not install blackfire on PHP ${semver:?}"
   fi
-  disable_extension xdebug >/dev/null 2>&1
-  disable_extension pcov >/dev/null 2>&1
-  enable_extension blackfire extension
-  add_extension_log blackfire "$status"
 }