diff --git a/.zenodo.json b/.zenodo.json
index e6cd78b4..91bd3d82 100644
--- a/.zenodo.json
+++ b/.zenodo.json
@@ -452,8 +452,10 @@
             "type": "Other"
         },
         {
+            "affiliation": "University of Graz",
             "name": "Bernd Riederer",
-            "type": "Other"
+            "type": "Other",
+            "orcid": "0000-0001-8390-0087"
         },
         {
             "name": "Christina Lee",
diff --git a/src/backends/gr.jl b/src/backends/gr.jl
index 161ac190..4083444e 100644
--- a/src/backends/gr.jl
+++ b/src/backends/gr.jl
@@ -401,7 +401,7 @@ end
 
 function gr_nans_to_infs!(z)
     for (i,zi) in enumerate(z)
-        if zi == NaN
+        if isnan(zi)
             z[i] = Inf
         end
     end