diff --git a/app/src/main/java/org/lineageos/aperture/MainActivity.kt b/app/src/main/java/org/lineageos/aperture/MainActivity.kt
index 4828856..6c758ad 100644
--- a/app/src/main/java/org/lineageos/aperture/MainActivity.kt
+++ b/app/src/main/java/org/lineageos/aperture/MainActivity.kt
@@ -451,6 +451,10 @@
         // Observe zoom state
         cameraController.zoomState.removeObservers(this)
         cameraController.zoomState.observe(this) {
+            if (it.minZoomRatio == it.maxZoomRatio) {
+                return@observe
+            }
+
             zoomLevel.valueFrom = it.minZoomRatio
             zoomLevel.valueTo = it.maxZoomRatio
             zoomLevel.value = it.zoomRatio