diff --git a/R/conceptCohort.R b/R/conceptCohort.R
index 228bc5e..feb0b2d 100644
--- a/R/conceptCohort.R
+++ b/R/conceptCohort.R
@@ -206,12 +206,15 @@ conceptCohort <- function(cdm,
   }
 
   if(overlap == "extend"){
-    cli::cli_inform(c("i" = "Merging overlapping records."))
+    cli::cli_inform(c("i" = "Adding overlapping records."))
     cdm[[name]] <- cdm[[name]] |>
       extendOverlap(name = name)  |>
       omopgenerics::recordCohortAttrition(reason = "Add overlapping records")
-  }
 
+   # adding days might mean we no longer satisfy cohort requirements
+    cli::cli_inform(c("i" = "Re-appplying cohort requirements."))
+    cdm[[name]] <- fulfillCohortReqs(cdm = cdm, name = name)
+  }
 
   cdm[[name]] <- omopgenerics::newCohortTable(table = cdm[[name]])
 
diff --git a/tests/testthat/test-conceptCohort.R b/tests/testthat/test-conceptCohort.R
index 2b59d5d..e12227a 100644
--- a/tests/testthat/test-conceptCohort.R
+++ b/tests/testthat/test-conceptCohort.R
@@ -909,7 +909,7 @@ test_that("overlap option", {
       "drug_exposure_end_date" = as.Date(c("2020-01-08", "2020-01-11",  "2020-01-15")),
       "drug_type_concept_id" = 1L
     ))
-  expect_no_error(conceptCohort(cdm = cdm,
+  expect_no_error(cdm$cohort_6 <- conceptCohort(cdm = cdm,
                                 conceptSet = list(a = 1L),
                                 name = "cohort_6",
                                 exit = "event_end_date",
@@ -917,6 +917,25 @@ test_that("overlap option", {
 
 
 
+  # Check if "extend" exceeds observation_period_end_date
+  cdm <- omopgenerics::insertTable(
+    cdm = cdm, name = "drug_exposure", table = dplyr::tibble(
+      "drug_exposure_id" = c(1L, 2L),
+      "person_id" = c(1L, 1L),
+      "drug_concept_id" = c(1L, 1L),
+      "drug_exposure_start_date" = as.Date(c("2020-01-15", "2020-01-20")),
+      "drug_exposure_end_date" = as.Date(c("2020-01-28", "2020-01-28")),
+      "drug_type_concept_id" = 1L
+    ))
+
+  expect_no_error(cdm$cohort_7 <- conceptCohort(cdm = cdm,
+                                conceptSet = list(a = 1L),
+                                name = "cohort_7",
+                                exit = "event_end_date",
+                                overlap = "extend"))
+
+
+
   PatientProfiles::mockDisconnect(cdm)
 })