diff --git a/src/latex-struct/LongtableParser.vala b/src/latex-struct/LongtableParser.vala
index 6a832a8..15bebb1 100644
--- a/src/latex-struct/LongtableParser.vala
+++ b/src/latex-struct/LongtableParser.vala
@@ -93,7 +93,7 @@ namespace LAview {
 						col_param.nrlines = wlen - 1 - nrlines;
 
 						// Bug #94: Parse Multiple defined columns in the tabular/longtable.
-						while (count-- > 0) col_params.insert (0, col_param);
+						while (count-- > 0) col_params.insert (0, col_param.copy ());
 
 						match_info.next ();
 					}
diff --git a/src/latex-struct/TabularParser.vala b/src/latex-struct/TabularParser.vala
index 9863df0..6768332 100644
--- a/src/latex-struct/TabularParser.vala
+++ b/src/latex-struct/TabularParser.vala
@@ -107,7 +107,7 @@ namespace LAview {
 						col_param.nrlines = wlen - 1 - nrlines;
 
 						// Bug #94: Parse Multiple defined columns in the tabular/longtable.
-						while (count-- > 0) col_params.insert (0, col_param);
+						while (count-- > 0) col_params.insert (0, col_param.copy ());
 
 						match_info.next ();
 					}