diff --git a/check_process.sh b/check_process.sh
index 2cc11d7..3fcd919 100755
--- a/check_process.sh
+++ b/check_process.sh
@@ -38,8 +38,12 @@ if [ -z "$pretty_service_name" ]; then
   pretty_service_name="$process_name"
 fi
 
-# Check if the process is running
-process_count=$(pgrep -f "$process_name" 2>/dev/null | wc -l)
+if uname | grep -q "BSD"; then
+  # have to run pgrep with sudo in BSD
+  process_count=$(sudo pgrep -f "$process_name" 2>/dev/null | wc -l)
+else
+  process_count=$(pgrep -f "$process_name" 2>/dev/null | wc -l)
+fi
 
 if [ $? -ne 0 ]; then
   echo "UNKNOWN - Check failed"