diff --git a/tests/modules/ambigious/__init__.py b/tests/modules/ambiguous/__init__.py
similarity index 100%
rename from tests/modules/ambigious/__init__.py
rename to tests/modules/ambiguous/__init__.py
diff --git a/tests/modules/ambigious/pkg1/__init__.py b/tests/modules/ambiguous/pkg1/__init__.py
similarity index 100%
rename from tests/modules/ambigious/pkg1/__init__.py
rename to tests/modules/ambiguous/pkg1/__init__.py
diff --git a/tests/modules/ambigious/pkg1/ambigious.py b/tests/modules/ambiguous/pkg1/ambiguous.py
similarity index 100%
rename from tests/modules/ambigious/pkg1/ambigious.py
rename to tests/modules/ambiguous/pkg1/ambiguous.py
diff --git a/tests/modules/usepkgs.py b/tests/modules/usepkgs.py
index 2e4d21a71..7b42976d5 100644
--- a/tests/modules/usepkgs.py
+++ b/tests/modules/usepkgs.py
@@ -5,4 +5,4 @@
 import pkg2.p2a, pkg2.p2b
 import othermods.othera, othermods.otherb
 import othermods.sub.osa, othermods.sub.osb
-import ambigious, ambigious.pkg1.ambigious
+import ambiguous, ambiguous.pkg1.ambiguous
diff --git a/tests/test_api.py b/tests/test_api.py
index a28d0133c..e2a2a5556 100644
--- a/tests/test_api.py
+++ b/tests/test_api.py
@@ -935,20 +935,20 @@ def test_source_package_as_package_part_omitted(self):
         self.filenames_not_in(lines, "p1b")
         self.assertEqual(lines['p1c'], 0)
 
-    def test_ambigious_source_package_as_dir(self):
-        # pkg1 is a directory and a pkg, since we cd into tests/modules/ambigious
-        self.chdir(self.nice_file(TESTS_DIR, 'modules', "ambigious"))
-        # pkg1 defaults to directory because tests/modules/ambigious/pkg1 exists
+    def test_ambiguous_source_package_as_dir(self):
+        # pkg1 is a directory and a pkg, since we cd into tests/modules/ambiguous
+        self.chdir(self.nice_file(TESTS_DIR, 'modules', "ambiguous"))
+        # pkg1 defaults to directory because tests/modules/ambiguous/pkg1 exists
         lines = self.coverage_usepkgs(source=["pkg1"])
-        self.filenames_in(lines, "ambigious")
+        self.filenames_in(lines, "ambiguous")
         self.filenames_not_in(lines, "p1a p1b p1c")
 
-    def test_ambigious_source_package_as_package(self):
-        # pkg1 is a directory and a pkg, since we cd into tests/modules/ambigious
-        self.chdir(self.nice_file(TESTS_DIR, 'modules', "ambigious"))
+    def test_ambiguous_source_package_as_package(self):
+        # pkg1 is a directory and a pkg, since we cd into tests/modules/ambiguous
+        self.chdir(self.nice_file(TESTS_DIR, 'modules', "ambiguous"))
         lines = self.coverage_usepkgs(source_pkgs=["pkg1"])
         self.filenames_in(lines, "p1a p1b")
-        self.filenames_not_in(lines, "p2a p2b othera otherb osa osb ambigious")
+        self.filenames_not_in(lines, "p2a p2b othera otherb osa osb ambiguous")
         # Because source= was specified, we do search for unexecuted files.
         self.assertEqual(lines['p1c'], 0)