diff --git a/bin/regression-wally b/bin/regression-wally
index 63c88ab0b..20bcc32b1 100755
--- a/bin/regression-wally
+++ b/bin/regression-wally
@@ -318,7 +318,8 @@ def addTestsByDir(testDir, config, sim, coverStr, configs, lockstepMode=0, breke
     sim_logdir = f"{regressionDir}/{sim}/logs/"
     cmdPrefix = f"wsim --sim {sim} {coverStr} {'--lockstep' if lockstepMode else ''} {config}"
     # fcov/ccov only runs on WALLY-COV-ALL.elf files; other lockstep runs on all files
-    fileEnd = "ALL.elf" if "cvw-arch-verif/tests" in testDir and "priv" not in testDir and (coverStr == "--fcov" or coverStr == "--ccov") else ".elf"
+    fileStart = "WALLY-COV-ALL" if "cvw-arch-verif/tests" in testDir and "priv" not in testDir and (coverStr == "--fcov" or coverStr == "--ccov") else ""
+    fileEnd = ".elf"
     if lockstepMode or coverStr == "--fcov":
         gs = "Mismatches            : 0"
     elif brekerMode:
@@ -327,7 +328,7 @@ def addTestsByDir(testDir, config, sim, coverStr, configs, lockstepMode=0, breke
         gs = "Single Elf file tests are not signatured verified."
     for dirpath, _, filenames in os.walk(os.path.abspath(testDir)):
         for file in filenames:
-            if file.endswith(fileEnd):
+            if file.endswith(fileEnd) and file.startswith(fileStart):
                 fullfile = os.path.join(dirpath, file)
                 fields = fullfile.rsplit('/', 3)
                 if fields[2] == "ref":