diff --git a/eno-core/src/main/java/fr/insee/eno/core/utils/LunaticUtils.java b/eno-core/src/main/java/fr/insee/eno/core/utils/LunaticUtils.java
index 6e8f76aba..d76493942 100644
--- a/eno-core/src/main/java/fr/insee/eno/core/utils/LunaticUtils.java
+++ b/eno-core/src/main/java/fr/insee/eno/core/utils/LunaticUtils.java
@@ -117,8 +117,8 @@ public static List<String> getCollectedVariablesInLoop(Loop loop) {
         List<String> result = new ArrayList<>();
         loop.getComponents().forEach(component -> {
             switch (component.getComponentType()) {
-                case CHECKBOX_BOOLEAN, INPUT_NUMBER, INPUT, TEXTAREA, DATEPICKER, RADIO, CHECKBOX_ONE, DROPDOWN,
-                        CHECKBOX_GROUP, TABLE ->
+                case CHECKBOX_BOOLEAN, INPUT_NUMBER, INPUT, TEXTAREA, DATEPICKER, DURATION, RADIO,
+                        CHECKBOX_ONE, DROPDOWN, CHECKBOX_GROUP, TABLE ->
                         result.addAll(getDirectResponseNames(component));
                 case ROSTER_FOR_LOOP ->
                         throw new LunaticLoopException(String.format(
@@ -133,8 +133,8 @@ public static List<String> getCollectedVariablesInLoop(Loop loop) {
                                 "Pairwise components are forbidden in loops: loop '%s' contains a pairwise component.",
                                 loop.getId()));
                 default ->
-                        log.debug("(Variables in Lunatic loop) Component of type {} has no response.",
-                                component.getComponentType());
+                        throw new IllegalArgumentException(
+                                "Unexpected component type '" + component.getComponentType() + "'.");
             }
         });
         return result;
diff --git a/eno-core/src/test/java/fr/insee/eno/core/processing/out/steps/lunatic/resizing/LunaticLoopResizingLogicTest.java b/eno-core/src/test/java/fr/insee/eno/core/processing/out/steps/lunatic/resizing/LunaticLoopResizingLogicTest.java
index 872aed90b..b65007f19 100644
--- a/eno-core/src/test/java/fr/insee/eno/core/processing/out/steps/lunatic/resizing/LunaticLoopResizingLogicTest.java
+++ b/eno-core/src/test/java/fr/insee/eno/core/processing/out/steps/lunatic/resizing/LunaticLoopResizingLogicTest.java
@@ -136,6 +136,11 @@ void simpleResponseComponents_resizedVariables() {
         datepicker.setResponse(new ResponseType());
         datepicker.getResponse().setName("DATE_VAR");
         lunaticLoop.getComponents().add(datepicker);
+        Duration duration = new Duration();
+        duration.setComponentType(ComponentTypeEnum.DURATION);
+        duration.setResponse(new ResponseType());
+        duration.getResponse().setName("DURATION_VAR");
+        lunaticLoop.getComponents().add(duration);
         Dropdown dropdown = new Dropdown();
         dropdown.setComponentType(ComponentTypeEnum.DROPDOWN);
         dropdown.setResponse(new ResponseType());
@@ -160,7 +165,7 @@ void simpleResponseComponents_resizedVariables() {
         // Then
         assertThat(lunaticResizing.getResizingEntry("LOOP_SIZE_VAR").getVariables())
                 .containsExactlyInAnyOrderElementsOf(Set.of(
-                        "BOOLEAN_VAR", "INPUT_VAR", "TEXT_VAR", "NUMBER_VAR", "DATE_VAR",
+                        "BOOLEAN_VAR", "INPUT_VAR", "TEXT_VAR", "NUMBER_VAR", "DATE_VAR", "DURATION_VAR",
                         "DROPDOWN_VAR", "RADIO_VAR", "CHECKBOX_VAR"));
     }