1 files changed, 3 insertions, 3 deletions
diff --git a/src/utils/version.cpp b/src/utils/version.cpp
index 22827cbe5..ce2083bc0 100644
--- a/src/utils/version.cpp
+++ b/src/utils/version.cpp
@@ -21,9 +21,9 @@ namespace Botan {
 */
 std::string version_string()
    {
-   return to_string(version_major()) + "." +
-          to_string(version_minor()) + "." +
-          to_string(version_patch());
+   return std::to_string(version_major()) + "." +
+          std::to_string(version_minor()) + "." +
+          std::to_string(version_patch());
    }
 
 u32bit version_datestamp() { return BOTAN_VERSION_DATESTAMP; }