diff --git a/Makefile b/Makefile
index 577e305..d69c595 100644
--- a/Makefile
+++ b/Makefile
@@ -54,9 +54,9 @@ test:
 .PHONY: test-htmlcov
 test-htmlcov:
 	@echo Running the tests with HTML coverage report ...
-	pytest --cov=chemotools .\tests -n="auto" --cov-report=html -x
+	pytest --cov=chemotools ./tests -n="auto" --cov-report=html -x
 
 .PHONY: test-xmlcov
 test-xmlcov:
 	@echo Running the tests with XML coverage report ...
-	pytest --cov=chemotools .\tests -n="auto" --cov-report=html -x
\ No newline at end of file
+	pytest --cov=chemotools ./tests -n="auto" --cov-report=html -x
\ No newline at end of file
diff --git a/README.md b/README.md
index 3d9a386..8ccff7b 100644
--- a/README.md
+++ b/README.md
@@ -104,8 +104,8 @@ Other useful commands include:
 
 - parallelized testing the package with a coverage report:
     ```bash
-    pytest --cov=chemotools .\tests -n="auto" --cov-report=html -x  # for an HTML report
-    pytest --cov=chemotools .\tests -n="auto" --cov-report=xml -x  # for an XML report
+    pytest --cov=chemotools ./tests -n="auto" --cov-report=html -x  # for an HTML report
+    pytest --cov=chemotools ./tests -n="auto" --cov-report=xml -x  # for an XML report
 
     # or using the Makefile
     make test-htmlcov