diff --git a/libbeat/otelbeat/otelmap/otelmap.go b/libbeat/otelbeat/otelmap/otelmap.go
index 8a471524860e..50487d66a56c 100644
--- a/libbeat/otelbeat/otelmap/otelmap.go
+++ b/libbeat/otelbeat/otelmap/otelmap.go
@@ -101,10 +101,15 @@ func ConvertNonPrimitive[T mapstrOrMap](m T) {
 				s := make([]any, ref.Len())
 				for i := 0; i < ref.Len(); i++ {
 					elem := ref.Index(i).Interface()
-					if m, ok := elem.(map[string]any); ok {
-						ConvertNonPrimitive(m)
+					if mi, ok := elem.(map[string]any); ok {
+						ConvertNonPrimitive(mi)
+						s[i] = mi
+					} else if mi, ok := elem.(mapstr.M); ok {
+						ConvertNonPrimitive(mi)
+						s[i] = map[string]any(mi)
+					} else {
+						s[i] = elem
 					}
-					s[i] = elem
 				}
 				m[key] = s
 				break // we figured out the type, so we don't need the unknown type case
diff --git a/libbeat/otelbeat/otelmap/otelmap_test.go b/libbeat/otelbeat/otelmap/otelmap_test.go
index a33fc0fa749f..5d2b19bd35fa 100644
--- a/libbeat/otelbeat/otelmap/otelmap_test.go
+++ b/libbeat/otelbeat/otelmap/otelmap_test.go
@@ -198,7 +198,7 @@ func TestFromMapstrMapstr(t *testing.T) {
 }
 
 func TestFromMapstrSliceMapstr(t *testing.T) {
-	inputSlice := []mapstr.M{mapstr.M{"item": 1}, mapstr.M{"item": 1}, mapstr.M{"item": 1}}
+	inputSlice := []mapstr.M{{"item": 1}, {"item": 1}, {"item": 1}}
 	inputMap := mapstr.M{
 		"slice": inputSlice,
 	}
@@ -292,6 +292,7 @@ func TestFromMapstrWithNestedData(t *testing.T) {
 				"inner_int": 43,
 				"inner_map_slice": []any{
 					map[string]any{"string": "string3"},
+					mapstr.M{"number": 12.4},
 				},
 				"inner_slice": [2]map[string]any{ // array -> slice
 					{"string": "string2"},
@@ -318,6 +319,7 @@ func TestFromMapstrWithNestedData(t *testing.T) {
 				"inner_int": 43,
 				"inner_map_slice": []any{
 					map[string]any{"string": "string3"},
+					map[string]any{"number": 12.4},
 				},
 				"inner_slice": []any{
 					map[string]any{"string": "string2"},