diff --git a/tools/bin2o.c b/tools/bin2o.c
index f946937f..eff63407 100644
--- a/tools/bin2o.c
+++ b/tools/bin2o.c
@@ -362,17 +362,20 @@ int main(int argc, char *argv[])
     buffer = malloc(size);
     if (buffer == NULL) {
 	printf("Failed to allocate memory.\n");
+	fclose(dest);
 	return 1;
     }
 
     if (fread(buffer, 1, size, source) != size) {
 	printf("Failed to read file.\n");
+	fclose(dest);
 	return 1;
     }
     fclose(source);
 
     if (!(dest = fopen(f_dest, "wb+"))) {
 	printf("Failed to open/create %s.\n", f_dest);
+	fclose(dest);
 	return 1;
     }