diff --git a/R/collapse_rows.R b/R/collapse_rows.R
index 72ee31c..d260362 100644
--- a/R/collapse_rows.R
+++ b/R/collapse_rows.R
@@ -127,7 +127,7 @@
     }
     out <- sub(contents[i + 1], new_contents[i], out)
   }
-  out <- sub("\\\\addlinespace\n", "", out)
+  out <- gsub("\\\\addlinespace\n", "", out)
 
   out <- structure(out, format = "latex", class = "knitr_kable")
   table_info$collapse_rows <- TRUE