diff --git a/src/disk.c b/src/disk.c
index acb957d..a855a92 100644
--- a/src/disk.c
+++ b/src/disk.c
@@ -12,7 +12,7 @@ bool create_empty_disk(const char* disk, uint64_t size) {
 	char* stderrb = NULL;
 
 	// Create an empty disk
-	int result = execute(&stdoutb, &stderrb, "qemu-img", "create", "-c", "-f", "qcow2", disk, format("%lu", size), NULL);
+	int result = execute(&stdoutb, &stderrb, "qemu-img", "create", "-c", "-f", "qcow2", disk, format("%" PRIu64, size), NULL);
 
 	// Check if the command was successful
 	if (result != 0) {
@@ -21,7 +21,7 @@ bool create_empty_disk(const char* disk, uint64_t size) {
 		for (size_t i = 0; i < length; i++)
 			if (stderrb[i] == '\n')
 				stderrb[i] = ' ';
-		log_msg(LOG_ERROR, "Failed to create the empty disk %s (%s)", disk, stderrb);
+		log_msg(LOG_ERROR, "Failed to create the empty disk %s (%s).", disk, stderrb);
 
 		free(stdoutb);
 		free(stderrb);
@@ -49,7 +49,7 @@ bool create_backed_disk(const char* disk, const char* backing) {
 		for (size_t i = 0; i < length; i++)
 			if (stderrb[i] == '\n')
 				stderrb[i] = ' ';
-		log_msg(LOG_ERROR, "Failed to create the backed disk %s (%s)", disk, stderrb);
+		log_msg(LOG_ERROR, "Failed to create the backed disk %s (%s).", disk, stderrb);
 
 		free(stdoutb);
 		free(stderrb);
@@ -77,7 +77,7 @@ char* get_backing_file(const char* disk) {
 		for (size_t i = 0; i < length; i++)
 			if (stderrb[i] == '\n')
 				stderrb[i] = ' ';
-		log_msg(LOG_ERROR, "Failed to get the backing file of the disk %s (%s)", disk, stderrb);
+		log_msg(LOG_ERROR, "Failed to get the backing file of the disk %s (%s).", disk, stderrb);
 
 		free(stdoutb);
 		free(stderrb);