diff --git a/src/integrator_interface.jl b/src/integrator_interface.jl
index 9593baeb4..7f728adf0 100644
--- a/src/integrator_interface.jl
+++ b/src/integrator_interface.jl
@@ -622,7 +622,8 @@ function check_error(integrator::DEIntegrator)
         bigtol = max(integrator.opts.reltol, integrator.opts.abstol)
         # only declare instability if the dt is very small
         # or we have at least one digit of accuracy in the solution
-        if integrator.dt<eps(integrator.t) || isdefined(integrator, :EEst) && integrator.EEst * bigtol < .1
+        if integrator.dt < eps(integrator.t) ||
+           isdefined(integrator, :EEst) && integrator.EEst * bigtol < 0.1
             if integrator.opts.verbose
                 @warn("Instability detected. Aborting")
             end