diff --git a/lib/runner.js b/lib/runner.js
index 0c405530..f220c0fe 100644
--- a/lib/runner.js
+++ b/lib/runner.js
@@ -123,7 +123,7 @@ const getMigrationsToRun = (options, runNames, migrations) => {
       );
     const toRun = (options.timestamp
       ? downMigrations.filter(({ timestamp }) => timestamp >= options.count)
-      : downMigrations.slice(-Math.abs(options.count || 1))
+      : downMigrations.slice(-Math.abs(options.count === undefined ? 1 : options.count))
     ).reverse();
     const deletedMigrations = toRun.filter(migration => typeof migration === 'string');
     if (deletedMigrations.length) {
@@ -137,7 +137,7 @@ const getMigrationsToRun = (options, runNames, migrations) => {
     );
   return (options.timestamp
     ? upMigrations.filter(({ timestamp }) => timestamp <= options.count)
-    : upMigrations.slice(0, Math.abs(options.count || Infinity))
+    : upMigrations.slice(0, Math.abs(options.count === undefined ? Infinity : options.count))
   );
 };