diff --git a/components/tikv_alloc/src/lib.rs b/components/tikv_alloc/src/lib.rs
index 8223c032e55..f97ca325e56 100644
--- a/components/tikv_alloc/src/lib.rs
+++ b/components/tikv_alloc/src/lib.rs
@@ -157,7 +157,7 @@ mod runner {
                         let v = &name[idx + 7..];
                         if !v.is_empty()
                             && !v.chars().any(|c| c.is_ascii_lowercase())
-                            && !std::env::var(v).is_ok()
+                            && std::env::var(v).is_err()
                         {
                             desc.ignore = true;
                             // TODO: uncomment this on a toolchain > 2022-02-25
diff --git a/scripts/test-all b/scripts/test-all
index 5236a960b3c..3ee6dff285e 100755
--- a/scripts/test-all
+++ b/scripts/test-all
@@ -16,7 +16,7 @@ fi
 # Re-run tests that requires specific environment variables.
 if [[ "$(uname)" == "Linux" ]]; then
     export MALLOC_CONF=prof:true
-    ./scripts/test "$@" -- where_MALLOC_CONF --nocapture
+    ./scripts/test where_MALLOC_CONF "$@" -- --nocapture
 fi
 
 if [[ "$(uname)" = "Linux" ]]; then