diff --git a/standalone/StandaloneFuzzTargetMain.c b/standalone/StandaloneFuzzTargetMain.c
index 1d12172..efe512c 100644
--- a/standalone/StandaloneFuzzTargetMain.c
+++ b/standalone/StandaloneFuzzTargetMain.c
@@ -32,6 +32,7 @@
     fseek(f, 0, SEEK_SET);
     unsigned char *buf = (unsigned char*)malloc(len);
     size_t n_read = fread(buf, 1, len, f);
+    fclose(f);
     assert(n_read == len);
     LLVMFuzzerTestOneInput(buf, len);
     free(buf);