diff --git a/test-linuxcnc-rs274-native.sh b/test-linuxcnc-rs274-native.sh
index 9ea8dec..33af718 100755
--- a/test-linuxcnc-rs274-native.sh
+++ b/test-linuxcnc-rs274-native.sh
@@ -526,9 +526,10 @@ for case in "${threading_convert_error_cases[@]}"; do
     grep -Fq "$expected" "$output_dir/cnc_sim_linuxcnc_$fixture.err"
 done
 # Source basis: LinuxCNC src/emc/rs274ngc/interp_convert.cc convert_probe()
-# rejects zero feed, feed-per-revolution mode, and degenerate probe moves before
-# issuing STRAIGHT_PROBE().
+# rejects active cutter compensation, zero feed, feed-per-revolution mode, and
+# degenerate probe moves before issuing STRAIGHT_PROBE().
 probe_convert_error_cases=(
+    "linuxcnc_probe_cutter_comp_error|Cannot probe with cutter radius comp on"
     "linuxcnc_probe_zero_feed_error|Cannot probe with zero feed rate"
     "linuxcnc_probe_feed_per_rev_error|Cannot probe with feed per rev mode"
     "linuxcnc_probe_start_too_close_error|Start point too close to probe point"
diff --git a/test-linuxcnc-source-link.sh b/test-linuxcnc-source-link.sh
index 43cb323..0bea95b 100755
--- a/test-linuxcnc-source-link.sh
+++ b/test-linuxcnc-source-link.sh
@@ -1183,9 +1183,10 @@ for case in "${threading_convert_error_cases[@]}"; do
     grep -Fq "$expected" "$output_dir/cnc_sim_linuxcnc_source_$fixture.err"
 done
 # Source basis: LinuxCNC src/emc/rs274ngc/interp_convert.cc convert_probe()
-# rejects zero feed, feed-per-revolution mode, and degenerate probe moves before
-# issuing STRAIGHT_PROBE().
+# rejects active cutter compensation, zero feed, feed-per-revolution mode, and
+# degenerate probe moves before issuing STRAIGHT_PROBE().
 probe_convert_error_cases=(
+    "linuxcnc_probe_cutter_comp_error|Cannot probe with cutter radius comp on"
     "linuxcnc_probe_zero_feed_error|Cannot probe with zero feed rate"
     "linuxcnc_probe_feed_per_rev_error|Cannot probe with feed per rev mode"
     "linuxcnc_probe_start_too_close_error|Start point too close to probe point"
diff --git a/tests/gcode/linuxcnc_probe_cutter_comp_error.ngc b/tests/gcode/linuxcnc_probe_cutter_comp_error.ngc
new file mode 100644
index 0000000..d375b5e
--- /dev/null
+++ b/tests/gcode/linuxcnc_probe_cutter_comp_error.ngc
@@ -0,0 +1,4 @@
+G21 G90 G17
+G41 D1
+F100
+G38.2 Z1