diff --git a/src/template.c b/src/template.c
index 0b88c7a..c652795 100644
--- a/src/template.c
+++ b/src/template.c
@@ -199,13 +199,12 @@ main(void)
 
 	size_t w = 0;
 	for (size_t seq = 0; seq < MAX; seq++) {
-#else
-	do {
-#endif
 		size_t calc_block_size = BLOCK_SIZE;
 		if ((w + BLOCK_SIZE) >= PRODUCT)
 			calc_block_size = PRODUCT - w;
-
+#else
+	do {
+#endif
 		// * allocate heap for sample data
 		SAMPLE_TYPE* buffer = calloc(
 #if SEQUENTIAL_MODE
@@ -314,10 +313,8 @@ main(void)
 		fflush(output_file);
 #endif
 
-#if SEQUENTIAL_MODE
 		// * free allocated heap
 		free(buffer);
-#endif
 	}
 #if !SEQUENTIAL_MODE
 		while (0);
@@ -326,11 +323,6 @@ main(void)
 	// 6. close file
 	fclose(output_file);
 
-#if !SEQUENTIAL_MODE
-	// * free allocated heap
-	free(buffer);
-#endif
-
 	// * end of program
 #if !SILENT_MODE
 	printf("Done!\n");