diff --git a/tests/suites/test_suite_entropy.function b/tests/suites/test_suite_entropy.function
index 0e013b740d..ed9f3ac3cc 100644
--- a/tests/suites/test_suite_entropy.function
+++ b/tests/suites/test_suite_entropy.function
@@ -102,6 +102,7 @@ static int write_nv_seed(unsigned char *buf, size_t buf_len)
 
     if (fwrite(buf, 1, MBEDTLS_ENTROPY_BLOCK_SIZE, f) !=
         MBEDTLS_ENTROPY_BLOCK_SIZE) {
+        fclose(f);
         return -1;
     }
 
@@ -124,6 +125,7 @@ int read_nv_seed(unsigned char *buf, size_t buf_len)
 
     if (fread(buf, 1, MBEDTLS_ENTROPY_BLOCK_SIZE, f) !=
         MBEDTLS_ENTROPY_BLOCK_SIZE) {
+        fclose(f);
         return -1;
     }