diff --git a/src/gallium/frontends/clover/core/module.hpp b/src/gallium/frontends/clover/core/module.hpp
index 1d1f803520f..b014d3c40cb 100644
--- a/src/gallium/frontends/clover/core/module.hpp
+++ b/src/gallium/frontends/clover/core/module.hpp
@@ -153,6 +153,7 @@ namespace clover {
          std::vector<argument> args;
       };
 
+      module() : printf_strings_in_buffer(0) { }
       void serialize(std::ostream &os) const;
       static module deserialize(std::istream &is);
       size_t size() const;