diff --git a/easyspin/eulang.m b/easyspin/eulang.m
index 05a06875..b51f5707 100644
--- a/easyspin/eulang.m
+++ b/easyspin/eulang.m
@@ -38,7 +38,7 @@
   orthogonalityError = norm(R'*R-eye(3));
   if orthogonalityError>1e-2
     error('eulang: Rotation matrix is not orthogonal, deviation is %f.',orthogonalityError);
-  elseif orthogonalityError>1e-8
+  elseif orthogonalityError>1e-6
     fprintf('eulang: Rotation matrix is not orthogonal, deviation is %g.\n',orthogonalityError);
     fprintf('eulang: Orthogonalizing using singular-value decomposition (SVD).\n');
     [U,~,V] = svd(R);