diff --git a/cmd/signature-v2.go b/cmd/signature-v2.go
index 64dbc7181..3549fcfeb 100644
--- a/cmd/signature-v2.go
+++ b/cmd/signature-v2.go
@@ -282,7 +282,13 @@ func canonicalizedResourceV2(encodedPath string, encodedQuery string) string {
 			canonicalQueries = append(canonicalQueries, key)
 			continue
 		}
-		canonicalQueries = append(canonicalQueries, key+"="+val)
+		// Resources values should be unescaped
+		unescapedVal, err := url.QueryUnescape(val)
+		if err != nil {
+			errorIf(err, "Unable to unescape query value (query = `%s`, value = `%s`)", key, val)
+			continue
+		}
+		canonicalQueries = append(canonicalQueries, key+"="+unescapedVal)
 	}
 	if len(canonicalQueries) == 0 {
 		return encodedPath