diff --git a/lib/minimap-element.js b/lib/minimap-element.js
index f6b67185..e83ddb13 100644
--- a/lib/minimap-element.js
+++ b/lib/minimap-element.js
@@ -929,6 +929,9 @@ export default class MinimapElement {
   measureHeightAndWidth (visibilityChanged, forceUpdate = true) {
     if (!this.minimap) { return }
 
+    const safeFlexBasis = this.style.flexBasis
+    this.style.flexBasis = ''
+
     let wasResized = this.width !== this.clientWidth || this.height !== this.clientHeight
 
     this.height = this.clientHeight
@@ -963,6 +966,8 @@ export default class MinimapElement {
       }
 
       this.updateCanvasesSize(canvasWidth)
+    } else {
+      this.style.flexBasis = safeFlexBasis
     }
   }