diff --git a/src/applications/bmqstoragetool/m_bmqstoragetool_journalfileprocessor.cpp b/src/applications/bmqstoragetool/m_bmqstoragetool_journalfileprocessor.cpp
index 823284d590..edd55f3909 100644
--- a/src/applications/bmqstoragetool/m_bmqstoragetool_journalfileprocessor.cpp
+++ b/src/applications/bmqstoragetool/m_bmqstoragetool_journalfileprocessor.cpp
@@ -110,7 +110,7 @@ LessThanLowerBoundFn::LessThanLowerBoundFn(const Parameters::Range& range)
 }
 
 bool LessThanLowerBoundFn::operator()(const mqbs::JournalFileIterator* jit,
-                                      bool inverseOrder)
+                                      bool inverseOrder) const
 {
     // PRECONDITIONS
     BSLS_ASSERT(jit);
diff --git a/src/applications/bmqstoragetool/m_bmqstoragetool_journalfileprocessor.h b/src/applications/bmqstoragetool/m_bmqstoragetool_journalfileprocessor.h
index afd4bea0b6..1abfc2d929 100644
--- a/src/applications/bmqstoragetool/m_bmqstoragetool_journalfileprocessor.h
+++ b/src/applications/bmqstoragetool/m_bmqstoragetool_journalfileprocessor.h
@@ -52,10 +52,13 @@ class LessThanLowerBoundFn {
 
   public:
     // CREATORS
+
     explicit LessThanLowerBoundFn(const Parameters::Range& range);
 
+    // ACCESSORS
+
     bool operator()(const mqbs::JournalFileIterator* jit,
-                    bool                             inverseOrder = false);
+                    bool inverseOrder = false) const;
     // Return true if value specified by `jit` is less than range lower bound
     // when the specified `inverseOrder` is false, false otherwise.
     // Return true if range lower bound is less than value specified by `jit`