diff --git a/src/main/java/aa/aggregators/institution/InstitutionAttributeAggregator.java b/src/main/java/aa/aggregators/institution/InstitutionAttributeAggregator.java
index f1d805c8..c2550ae3 100644
--- a/src/main/java/aa/aggregators/institution/InstitutionAttributeAggregator.java
+++ b/src/main/java/aa/aggregators/institution/InstitutionAttributeAggregator.java
@@ -10,6 +10,7 @@
 import org.springframework.core.io.Resource;
 import org.springframework.http.client.support.BasicAuthenticationInterceptor;
 import org.springframework.util.CollectionUtils;
+import org.springframework.web.client.HttpStatusCodeException;
 import org.springframework.web.client.RestTemplate;
 
 import java.util.ArrayList;
@@ -65,9 +66,17 @@ public List<UserAttribute> aggregate(List<UserAttribute> input, Map<String, List
         Map<String, List<String>> body;
         try {
             body = restTemplate.getForEntity(url, Map.class).getBody();
-        } catch (RuntimeException e) {
+        } catch (HttpStatusCodeException e) {
             String msg = String.format("InstitutionEndpoint %s configured for: %s, returned an error", institutionEndpoint, spEntityID);
-            LOG.error(msg, e);
+            if (e.getStatusCode().value() == 404) {
+                LOG.info(msg + " 404 Not Found");
+            } else {
+                LOG.error(msg, e);
+            }
+            return errorResponse(input);
+        } catch (RuntimeException e) {
+            // Voor netwerkfouten of andere runtime issues
+            LOG.error("System error calling InstitutionEndpoint", e);
             return errorResponse(input);
         }