diff --git a/internal/stage_wildcard.go b/internal/stage_wildcard.go
index d97ae46..ff0cd35 100644
--- a/internal/stage_wildcard.go
+++ b/internal/stage_wildcard.go
@@ -21,6 +21,11 @@ func testWildcard(stageHarness *test_case_harness.TestCaseHarness) error {
 			Input:            "car",
 			ExpectedExitCode: 1,
 		},
+		{
+			Pattern:          "c.+t",
+			Input:            "coat",
+			ExpectedExitCode: 0,
+		},
 	}
 
 	return RunTestCases(testCases, stageHarness)
diff --git a/internal/test_helpers/fixtures/alternation/success b/internal/test_helpers/fixtures/alternation/success
index b674063..83790d9 100644
--- a/internal/test_helpers/fixtures/alternation/success
+++ b/internal/test_helpers/fixtures/alternation/success
@@ -18,6 +18,9 @@
 [stage-11] ✓ Received exit code 0.
 [stage-11] $ echo -n "car" | ./your_grep.sh -E "c.t"
 [stage-11] ✓ Received exit code 1.
+[stage-11] $ echo -n "coat" | ./your_grep.sh -E "c.+t"
+[your_program] coat
+[stage-11] ✓ Received exit code 0.
 [stage-11] Test passed.
 
 [stage-10] Running tests for Stage #10: ny8
diff --git a/internal/test_helpers/fixtures/backreferences_multiple/success b/internal/test_helpers/fixtures/backreferences_multiple/success
index 5646be6..acc46f9 100644
--- a/internal/test_helpers/fixtures/backreferences_multiple/success
+++ b/internal/test_helpers/fixtures/backreferences_multiple/success
@@ -100,6 +100,9 @@
 [stage-11] ✓ Received exit code 0.
 [stage-11] $ echo -n "car" | ./your_grep.sh -E "c.t"
 [stage-11] ✓ Received exit code 1.
+[stage-11] $ echo -n "coat" | ./your_grep.sh -E "c.+t"
+[your_program] coat
+[stage-11] ✓ Received exit code 0.
 [stage-11] Test passed.
 
 [stage-10] Running tests for Stage #10: ny8
diff --git a/internal/test_helpers/fixtures/backreferences_nested/success b/internal/test_helpers/fixtures/backreferences_nested/success
index 5561745..17b62b0 100644
--- a/internal/test_helpers/fixtures/backreferences_nested/success
+++ b/internal/test_helpers/fixtures/backreferences_nested/success
@@ -141,6 +141,9 @@
 [stage-11] ✓ Received exit code 0.
 [stage-11] $ echo -n "car" | ./your_grep.sh -E "c.t"
 [stage-11] ✓ Received exit code 1.
+[stage-11] $ echo -n "coat" | ./your_grep.sh -E "c.+t"
+[your_program] coat
+[stage-11] ✓ Received exit code 0.
 [stage-11] Test passed.
 
 [stage-10] Running tests for Stage #10: ny8
diff --git a/internal/test_helpers/fixtures/backreferences_single/success b/internal/test_helpers/fixtures/backreferences_single/success
index 663d229..e7dad93 100644
--- a/internal/test_helpers/fixtures/backreferences_single/success
+++ b/internal/test_helpers/fixtures/backreferences_single/success
@@ -59,6 +59,9 @@
 [stage-11] ✓ Received exit code 0.
 [stage-11] $ echo -n "car" | ./your_grep.sh -E "c.t"
 [stage-11] ✓ Received exit code 1.
+[stage-11] $ echo -n "coat" | ./your_grep.sh -E "c.+t"
+[your_program] coat
+[stage-11] ✓ Received exit code 0.
 [stage-11] Test passed.
 
 [stage-10] Running tests for Stage #10: ny8
diff --git a/internal/test_helpers/fixtures/wildcard/success b/internal/test_helpers/fixtures/wildcard/success
index 8f95556..8de626e 100644
--- a/internal/test_helpers/fixtures/wildcard/success
+++ b/internal/test_helpers/fixtures/wildcard/success
@@ -7,6 +7,9 @@
 [stage-11] ✓ Received exit code 0.
 [stage-11] $ echo -n "car" | ./your_grep.sh -E "c.t"
 [stage-11] ✓ Received exit code 1.
+[stage-11] $ echo -n "coat" | ./your_grep.sh -E "c.+t"
+[your_program] coat
+[stage-11] ✓ Received exit code 0.
 [stage-11] Test passed.
 
 [stage-10] Running tests for Stage #10: ny8