diff --git a/test/mjsunit/compiler/regress-9017.js b/test/mjsunit/compiler/regress-9017.js
index c484e177c6..72652f22f4 100644
--- a/test/mjsunit/compiler/regress-9017.js
+++ b/test/mjsunit/compiler/regress-9017.js
@@ -5,6 +5,8 @@
 // Flags: --allow-natives-syntax --noturbo-inlining --noturbo-verify-allocation
 // This test invokes optimization manually, no need for stress modes:
 // Flags: --nostress-opt --noalways-opt
+// This neuters too low stack size passed by the flag fuzzer.
+// Flags: --stack-size=864
 
 // Ensure that very large stack frames can be used successfully.
 // The flag --noturbo-verify-allocation is to make this run a little faster; it
diff --git a/tools/testrunner/testproc/fuzzer.py b/tools/testrunner/testproc/fuzzer.py
index 0452704781..67250b1c74 100644
--- a/tools/testrunner/testproc/fuzzer.py
+++ b/tools/testrunner/testproc/fuzzer.py
@@ -269,7 +269,7 @@ class CompactionFuzzer(Fuzzer):
 class StackSizeFuzzer(Fuzzer):
   def create_flags_generator(self, rng, test, analysis_value):
     while True:
-      yield ['--stack-size=%d' % rng.randint(50, 983)]
+      yield ['--stack-size=%d' % rng.randint(54, 983)]
 
 class TaskDelayFuzzer(Fuzzer):
   def create_flags_generator(self, rng, test, analysis_value):