diff --git a/Raven.Migrations/MigrationOptions.cs b/Raven.Migrations/MigrationOptions.cs
index 8876aa8..073e197 100644
--- a/Raven.Migrations/MigrationOptions.cs
+++ b/Raven.Migrations/MigrationOptions.cs
@@ -46,5 +46,26 @@ public MigrationOptions(IMigrationResolver migrationResolver)
         /// If <see cref="PreventSimultaneousMigrations"/> is enabled, any attempt to run migrations during this time will fail.
         /// </summary>
         public TimeSpan SimultaneousMigrationTimeout { get; set; }
+
+        /// <summary>
+        /// What to do when migration lock cannot be obtained. Default behavior is to skip running migrations.
+        /// </summary>
+        public SimultaneousMigrationBehavior SimultaneousMigrationBehavior { get; set; } = SimultaneousMigrationBehavior.Skip;
+    }
+
+    /// <summary>
+    /// Behavior options when attempt to run simultaneous migrations.
+    /// </summary>
+    public enum SimultaneousMigrationBehavior
+    {
+        /// <summary>
+        /// Skip migration and log warning-
+        /// </summary>
+        Skip,
+
+        /// <summary>
+        /// Throw an exception and effectively cancel the migration attempt.
+        /// </summary>
+        Error
     }
 }
\ No newline at end of file
diff --git a/Raven.Migrations/MigrationRunner.cs b/Raven.Migrations/MigrationRunner.cs
index ba2a280..1248624 100644
--- a/Raven.Migrations/MigrationRunner.cs
+++ b/Raven.Migrations/MigrationRunner.cs
@@ -38,7 +38,14 @@ public virtual void Run()
             }
             if (!canRunMigrations)
             {
-                logger.LogWarning("Skipping migrations because migrations are already running.");
+                if (options.SimultaneousMigrationBehavior == SimultaneousMigrationBehavior.Skip)
+                {
+                    logger.LogWarning("Skipping migrations because migrations are already running.");
+                }
+                else if (options.SimultaneousMigrationBehavior == SimultaneousMigrationBehavior.Error)
+                {
+                    throw new InvalidOperationException("Could not get exclusive lock to run migration");
+                }
             }
             else
             {