diff --git a/src/catch2/internal/catch_textflow.cpp b/src/catch2/internal/catch_textflow.cpp
index 445cdb712c..cae8dd7148 100644
--- a/src/catch2/internal/catch_textflow.cpp
+++ b/src/catch2/internal/catch_textflow.cpp
@@ -231,7 +231,7 @@ namespace Catch {
         }
 
         std::string Column::const_iterator::operator*() const {
-            assert( m_lineStart != m_parsedTo );
+            assert( m_lineStart <= m_parsedTo );
             return addIndentAndSuffix( m_lineStart, m_lineEnd );
         }
 
diff --git a/src/catch2/internal/catch_textflow.hpp b/src/catch2/internal/catch_textflow.hpp
index 510b0516d7..2d9d78a50a 100644
--- a/src/catch2/internal/catch_textflow.hpp
+++ b/src/catch2/internal/catch_textflow.hpp
@@ -111,6 +111,9 @@ namespace Catch {
             bool operator!=( const_iterator const& other ) const {
                 return !operator==( other );
             }
+            bool operator<=( const_iterator const& other ) const {
+                return m_it <= other.m_it;
+            }
 
             const_iterator oneBefore() const {
                 auto it = *this;