1 files changed, 8 insertions, 0 deletions
diff --git a/src/object/sp-object.cpp b/src/object/sp-object.cpp
index 7c6b6c28d..4a9a347c1 100644
--- a/src/object/sp-object.cpp
+++ b/src/object/sp-object.cpp
@@ -996,6 +996,14 @@ void SPObject::readAttr(gchar const *key)
     if (keyid != SP_ATTR_INVALID) {
         /* Retrieve the 'key' attribute from the object's XML representation */
         gchar const *value = getRepr()->attribute(key);
+        if (value &&
+            (!strcmp(value, "nan")
+            || !strcmp(value, "-nan")
+            || !strcmp(value, "NaN")
+            || !strcmp(value, "-NaN")
+            )) {
+          value = nullptr;
+        }
 
         setKeyValue(keyid, value);
     }