diff --git a/modules/security/bot-analyzer.sh b/modules/security/bot-analyzer.sh
index 07eec79..b0e23f9 100755
--- a/modules/security/bot-analyzer.sh
+++ b/modules/security/bot-analyzer.sh
@@ -1641,7 +1641,7 @@ analyze_time_series() {
                 hour = ts[4]
                 print hour
             }
-        }' "$TEMP_DIR/attack_vectors_raw.txt" <(cat "$TEMP_DIR/parsed_logs.txt") | sort | uniq -c > "$TEMP_DIR/hourly_attack_traffic.txt"
+        }' "$TEMP_DIR/attack_vectors_raw.txt" "$TEMP_DIR/parsed_logs.txt" | sort | uniq -c > "$TEMP_DIR/hourly_attack_traffic.txt"
     fi
 
     print_success "Time-series analysis complete"