1 files changed, 5 insertions, 0 deletions
diff --git a/src/test-zebra.c b/src/test-zebra.c
index 10eb147..ffd0c50 100644
--- a/src/test-zebra.c
+++ b/src/test-zebra.c
@@ -13,6 +13,11 @@ int test_zdab(char *err)
 
     zebraFile *z = zebra_open("Muons.zdab");
 
+    if (!z) {
+        sprintf(err, "%s", zebra_err);
+        return 1;
+    }
+
     while (1) {
         rv = next_bank(z, &b);