diff --git a/source/bin/rocprofv3.py b/source/bin/rocprofv3.py
index cd7f4f5..3b385cd 100755
--- a/source/bin/rocprofv3.py
+++ b/source/bin/rocprofv3.py
@@ -4,7 +4,6 @@
 import sys
 import argparse
 import subprocess
-import numpy
 
 
 class dotdict(dict):
@@ -196,7 +195,7 @@ def add_parser_bool_argument(gparser, *args, **kwargs):
         "--pc-sampling-interval",
         help="",
         default=None,
-        type=numpy.uint64,
+        type=int,
     )
     basic_tracing_options = parser.add_argument_group("Basic tracing options")
 
@@ -1010,6 +1009,9 @@ def log_config(_env):
         ):
             fatal_error("All three PC sampling configurations need to be set")
 
+        if args.pc_sampling_interval <= 0:
+            fatal_error("PC sampling interval must be a positive number.")
+
         update_env("ROCPROF_PC_SAMPLING_UNIT", args.pc_sampling_unit)
         update_env("ROCPROF_PC_SAMPLING_METHOD", args.pc_sampling_method)
         update_env("ROCPROF_PC_SAMPLING_INTERVAL", args.pc_sampling_interval)