diff --git a/src/problem/problem.cpp b/src/problem/problem.cpp
index 457bcf969e893d2362911520ad8ebedceb4302d0..fa168d5d5177de77bd469f169cfc978178a68776 100644
--- a/src/problem/problem.cpp
+++ b/src/problem/problem.cpp
@@ -1045,14 +1045,14 @@ void Problem::setPriorOptions(const std::string& _mode,
     assert((_mode == "nothing" || _mode == "initial_guess" || _mode == "fix" || _mode == "factor") && "wrong _mode value, it should be: 'nothing', 'initial_guess', 'fix' or 'factor'");
 
     // Store options (optionals depending on the mode)
-    WOLF_TRACE("prior mode:           ", _mode);
+    WOLF_DEBUG("prior mode:           ", _mode);
     prior_options_->mode = _mode;
 
     if (prior_options_->mode != "nothing")
     {
         assert(_state.includesStructure(frame_structure_) && "any missing key in prior state");
 
-        WOLF_TRACE("prior state:          ", _state);
+        WOLF_DEBUG("prior state:          ", _state);
         prior_options_->state = _state;
 
         if (prior_options_->mode == "factor")
@@ -1074,7 +1074,7 @@ void Problem::setPriorOptions(const std::string& _mode,
                 const auto& cov_blk = (sig_blk.array() * sig_blk.array()).matrix().asDiagonal();
                 Q.emplace(key,key,cov_blk);
             }
-            WOLF_TRACE("prior covariance:"    , Q);
+            WOLF_DEBUG("prior covariance:"    , Q);
             prior_options_->cov = Q;
         }
     }