diff --git a/src/pyramid.js b/src/pyramid.js
index 4cb29434..4ae2abba 100644
--- a/src/pyramid.js
+++ b/src/pyramid.js
@@ -269,7 +269,7 @@ function _computeImagePyramid ({ metadata }) {
 
 function _areImagePyramidsEqual (pyramid, refPyramid) {
   // Check that all the channels have the same pyramid parameters
-  if (!are2DArraysAlmostEqual(pyramid.extent, refPyramid.extent)) {
+  if (!are1DArraysAlmostEqual(pyramid.extent, refPyramid.extent)) {
     console.warn(
       'pyramid has different extent as reference pyramid: ',
       pyramid.extent,
@@ -285,7 +285,7 @@ function _areImagePyramidsEqual (pyramid, refPyramid) {
     )
     return false
   }
-  if (!are2DArraysAlmostEqual(pyramid.resolutions, refPyramid.resolutions)) {
+  if (!are1DArraysAlmostEqual(pyramid.resolutions, refPyramid.resolutions)) {
     console.warn(
       'pyramid has different resolutions as reference pyramid: ',
       pyramid.resolutions,
diff --git a/src/utils.js b/src/utils.js
index 5f43a4b8..8de3add3 100644
--- a/src/utils.js
+++ b/src/utils.js
@@ -418,7 +418,7 @@ function mapSlideCoordToPixelCoord ({ point, offset, orientation, spacing }) {
  *
  * @memberof utils
  */
-function are2DArraysAlmostEqual (a, b, eps = 1.e-6) {
+function are2DArraysAlmostEqual (a, b, eps = 1.e-5) {
   if (a === b) return true
   if (a == null || b == null) return false
   if (a.length !== b.length) return false
@@ -445,7 +445,7 @@ function are2DArraysAlmostEqual (a, b, eps = 1.e-6) {
  *
  * @memberof utils
  */
-function are1DArraysAlmostEqual (a, b, eps = 1.e-6) {
+function are1DArraysAlmostEqual (a, b, eps = 1.e-5) {
   if (a == null || b == null) return false
   if (a.length !== b.length) return false