From 23340d3c84677aee18a77ea81adf9ea2a7e86eb0 Mon Sep 17 00:00:00 2001
From: clint shryock <clint@ctshryock.com>
Date: Mon, 16 May 2016 12:20:06 -0500
Subject: [PATCH] provider/aws: Fix crash in ElastiCache param group

---
 builtin/providers/aws/structure.go | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/builtin/providers/aws/structure.go b/builtin/providers/aws/structure.go
index 40b0ff4ea3..1df36291a8 100644
--- a/builtin/providers/aws/structure.go
+++ b/builtin/providers/aws/structure.go
@@ -645,10 +645,12 @@ func flattenRedshiftParameters(list []*redshift.Parameter) []map[string]interfac
 func flattenElastiCacheParameters(list []*elasticache.Parameter) []map[string]interface{} {
 	result := make([]map[string]interface{}, 0, len(list))
 	for _, i := range list {
-		result = append(result, map[string]interface{}{
-			"name":  strings.ToLower(*i.ParameterName),
-			"value": strings.ToLower(*i.ParameterValue),
-		})
+		if i.ParameterValue != nil {
+			result = append(result, map[string]interface{}{
+				"name":  strings.ToLower(*i.ParameterName),
+				"value": strings.ToLower(*i.ParameterValue),
+			})
+		}
 	}
 	return result
 }