diff --git a/common/checksum/Checksum.cpp b/common/checksum/Checksum.cpp
index a1a2442e71674c0a95eed10cc783cee3890d0abc..c7348e7c1cffbdd7d326f90c62c57e80e00a85d8 100644
--- a/common/checksum/Checksum.cpp
+++ b/common/checksum/Checksum.cpp
@@ -38,7 +38,7 @@ const char *cta::Checksum::checksumTypeToStr(const ChecksumType enumValue)
 cta::Checksum::Checksum(): m_type(CHECKSUMTYPE_NONE) { }
 
 
-cta::Checksum::Checksum(const std::string& url) {
+cta::Checksum::Checksum(const std::string& url): m_type(CHECKSUMTYPE_NONE) {
   if (url.empty() || url == "-") {
     return;
   }