diff --git a/src/app/components/dialog/dialog.ts b/src/app/components/dialog/dialog.ts
index 285a62a972a..7da32e26b51 100755
--- a/src/app/components/dialog/dialog.ts
+++ b/src/app/components/dialog/dialog.ts
@@ -737,7 +737,7 @@ export class Dialog implements AfterContentInit, OnInit, OnDestroy {
                 this.lastPageX = event.pageX;
                 this.container.style.left = `${leftPos}px`;
                 this.lastPageY = event.pageY;
-                this.container.style.top = `${leftPos}px`;
+                this.container.style.top = `${topPos}px`;
             }
         }
     }
@@ -1016,4 +1016,4 @@ export class Dialog implements AfterContentInit, OnInit, OnDestroy {
     exports: [Dialog, SharedModule],
     declarations: [Dialog]
 })
-export class DialogModule {}
\ No newline at end of file
+export class DialogModule {}