diff --git a/lib/fort.c b/lib/fort.c
index ba955dc..959a6e3 100644
--- a/lib/fort.c
+++ b/lib/fort.c
@@ -848,6 +848,8 @@ fort_cell_t *copy_cell(fort_cell_t *cell)
     assert(cell);
 
     fort_cell_t *result = create_cell();
+    if (result == NULL)
+        return NULL;
     destroy_string_buffer(result->str_buffer);
     result->str_buffer = copy_string_buffer(cell->str_buffer);
     if (result->str_buffer == NULL) {
diff --git a/src/cell.c b/src/cell.c
index f9fd114..aeacd64 100644
--- a/src/cell.c
+++ b/src/cell.c
@@ -38,6 +38,8 @@ fort_cell_t *copy_cell(fort_cell_t *cell)
     assert(cell);
 
     fort_cell_t *result = create_cell();
+    if (result == NULL)
+        return NULL;
     destroy_string_buffer(result->str_buffer);
     result->str_buffer = copy_string_buffer(cell->str_buffer);
     if (result->str_buffer == NULL) {
diff --git a/tests/bb_tests/test_memory_errors.c b/tests/bb_tests/test_memory_errors.c
index 43740b7..c8d725a 100644
--- a/tests/bb_tests/test_memory_errors.c
+++ b/tests/bb_tests/test_memory_errors.c
@@ -27,6 +27,7 @@ void test_free(void *ptr)
 static int create_table_and_show(void)
 {
     ft_table_t *table = NULL;
+    ft_table_t *table_copy = NULL;
     int result = 0;
 
     table = ft_create_table();
@@ -62,11 +63,17 @@ static int create_table_and_show(void)
         goto exit;
     }
 
-    const char *table_str = ft_to_string(table);
-    if (table_str == NULL) {
+    table_copy = ft_copy_table(table);
+    if (table_copy == NULL) {
         result = 8;
         goto exit;
     }
+
+    const char *table_str = ft_to_string(table_copy);
+    if (table_str == NULL) {
+        result = 9;
+        goto exit;
+    }
     const char *table_str_etalon =
         "+---+---+-----+----------+\n"
         "|   |   |     |          |\n"
@@ -87,13 +94,14 @@ static int create_table_and_show(void)
         "+---+---+-----+----------+\n";
     /*assert_str_equal(table_str, table_str_etalon);*/
     if (strcmp(table_str, table_str_etalon) != 0) {
-        result = 9;
+        result = 10;
         goto exit;
     }
 
 
 exit:
     ft_destroy_table(table);
+    ft_destroy_table(table_copy);
     return result;
 }