diff --git a/vault/acl_test.go b/vault/acl_test.go
index 65ec5c223..4fdb2eda7 100644
--- a/vault/acl_test.go
+++ b/vault/acl_test.go
@@ -335,14 +335,14 @@ func TestACL_ValuePermissions(t *testing.T) {
 		{"foo/bar", []string{"deny"}, []interface{}{"bad"}, false},
 		{"foo/bar", []string{"deny"}, []interface{}{"good"}, true},
 		{"foo/bar", []string{"allow"}, []interface{}{"good"}, true},
-		{"foo/baz", []string{"allow"}, []interface{}{"good"}, true},
+		{"foo/baz", []string{"aLLow"}, []interface{}{"good"}, true},
 		{"foo/baz", []string{"deny"}, []interface{}{"bad"}, false},
 		{"foo/baz", []string{"deny"}, []interface{}{"good"}, false},
 		{"foo/baz", []string{"allow", "deny"}, []interface{}{"good", "bad"}, false},
 		{"foo/baz", []string{"deny", "allow"}, []interface{}{"good", "bad"}, false},
-		{"foo/baz", []string{"deny", "allow"}, []interface{}{"bad", "good"}, false},
-		{"foo/baz", []string{"allow"}, []interface{}{"bad"}, false},
-		{"foo/baz", []string{"neither"}, []interface{}{"bad"}, false},
+		{"foo/baz", []string{"deNy", "allow"}, []interface{}{"bad", "good"}, false},
+		{"foo/baz", []string{"aLLow"}, []interface{}{"bad"}, false},
+		{"foo/baz", []string{"Neither"}, []interface{}{"bad"}, false},
 		{"fizz/buzz", []string{"allow_multi"}, []interface{}{"good"}, true},
 		{"fizz/buzz", []string{"allow_multi"}, []interface{}{"good1"}, true},
 		{"fizz/buzz", []string{"allow_multi"}, []interface{}{"good2"}, true},
@@ -630,10 +630,10 @@ path "foo/bar" {
 path "foo/baz" {
 	policy = "write"
 	allowed_parameters = {
-		"allow" = ["good"]
+		"ALLOW" = ["good"]
 	}
 	denied_parameters = {
-		"deny" = ["bad"]
+		"dEny" = ["bad"]
 	}
 }
 path "fizz/buzz" {
diff --git a/vault/policy.go b/vault/policy.go
index 6a3cbeb17..ab06c70b1 100644
--- a/vault/policy.go
+++ b/vault/policy.go
@@ -187,8 +187,19 @@ func parsePaths(result *Policy, list *ast.ObjectList) error {
 			}
 		}
 
-		pc.Permissions.AllowedParameters = pc.AllowedParametersHCL
-		pc.Permissions.DeniedParameters = pc.DeniedParametersHCL
+		if pc.AllowedParametersHCL != nil {
+			pc.Permissions.AllowedParameters = make(map[string][]interface{}, len(pc.AllowedParametersHCL))
+			for key, val := range pc.AllowedParametersHCL {
+				pc.Permissions.AllowedParameters[strings.ToLower(key)] = val
+			}
+		}
+		if pc.DeniedParametersHCL != nil {
+			pc.Permissions.DeniedParameters = make(map[string][]interface{}, len(pc.DeniedParametersHCL))
+
+			for key, val := range pc.DeniedParametersHCL {
+				pc.Permissions.DeniedParameters[strings.ToLower(key)] = val
+			}
+		}
 
 	PathFinished:
 		paths = append(paths, &pc)