diff --git a/src/macro-action-edit.cpp b/src/macro-action-edit.cpp
index 0278ef1c..df47f120 100644
--- a/src/macro-action-edit.cpp
+++ b/src/macro-action-edit.cpp
@@ -316,7 +316,7 @@ void AdvSceneSwitcher::MacroActionSelectionChanged(int idx)
 	SetSelection(actionsList, idx);
 	SetSelection(conditionsList, -1);
 
-	if (idx < 0 || idx >= macro->Actions().size()) {
+	if (idx < 0 || (unsigned)idx >= macro->Actions().size()) {
 		currentActionIdx = -1;
 	} else {
 		currentActionIdx = idx;
diff --git a/src/macro-condition-edit.cpp b/src/macro-condition-edit.cpp
index 8c308afe..20f4d541 100644
--- a/src/macro-condition-edit.cpp
+++ b/src/macro-condition-edit.cpp
@@ -458,7 +458,7 @@ void AdvSceneSwitcher::MacroConditionSelectionChanged(int idx)
 	SetSelection(conditionsList, idx);
 	SetSelection(actionsList, -1);
 
-	if (idx < 0 || idx >= macro->Conditions().size()) {
+	if (idx < 0 || (unsigned)idx >= macro->Conditions().size()) {
 		currentConditionIdx = -1;
 	} else {
 		currentConditionIdx = idx;