diff --git a/integration-tests/default.nix b/integration-tests/default.nix
index d8d0f4c17..71a924a8c 100644
--- a/integration-tests/default.nix
+++ b/integration-tests/default.nix
@@ -77,6 +77,8 @@ let
         deployer_do("cd ~/unicorn; nixops deploy --confirm")
 
         deployer_do("cd ~/unicorn; nixops ssh server 'hello | figlet'")
+
+        deployer_do("cd ~/unicorn; nixops check")
       '';
   });
 
diff --git a/nixops/backends/__init__.py b/nixops/backends/__init__.py
index 63bf03c49..09a900bdc 100644
--- a/nixops/backends/__init__.py
+++ b/nixops/backends/__init__.py
@@ -253,7 +253,12 @@ def _check(self, res):
 
                 if match:
                     unit = match.group(1)
-                    isSystemMount = unit.startswith("sys-") or unit.startswith("dev-")
+
+                    isSystemMount = (
+                        unit.startswith("sys-")
+                        or unit.startswith("dev-")
+                        or unit == "run-initramfs.mount"
+                    )
                     isBuiltinMount = unit == "tmp.mount" or unit == "home.mount"
 
                     if not isSystemMount and not isBuiltinMount: