diff --git a/src/regtable.jl b/src/regtable.jl
index 7b52781..1c0482e 100644
--- a/src/regtable.jl
+++ b/src/regtable.jl
@@ -203,8 +203,9 @@ function regtable(rr::Union{FixedEffectModel,TableRegressionModel}...;
     end
     
     if length(groups) > 0
-        regressandBlock = ["" reshape(groups, 1, numberOfResults);
-                           regressandBlock]
+      groupBlock = reshape(string.(groups), :, numberOfResults)
+        regressandBlock = [regressandBlock;
+                           fill("", size(groupBlock, 1)) groupBlock]
     end
     
     # Regression numbering block (if we do it)