diff --git a/README.md b/README.md
index 7a839316..3b72e1ba 100644
--- a/README.md
+++ b/README.md
@@ -31,7 +31,7 @@
   * [Fibonacci Number](https://github.com/trekhleb/javascript-algorithms/tree/master/src/algorithms/math/fibonacci)
   * [Cartesian Product](https://github.com/trekhleb/javascript-algorithms/tree/master/src/algorithms/math/cartesian-product)
   * [Power Set](https://github.com/trekhleb/javascript-algorithms/tree/master/src/algorithms/math/power-set)
-  * [Primality Tests](https://github.com/trekhleb/javascript-algorithms/tree/master/src/algorithms/math/primality-tests)
+  * [Primality Test](https://github.com/trekhleb/javascript-algorithms/tree/master/src/algorithms/math/primality-test)
   * Collatz Conjecture algorithm
   * Extended Euclidean algorithm
   * Euclidean algorithm to calculate the Greatest Common Divisor (GCD)
diff --git a/src/algorithms/math/primality-tests/README.md b/src/algorithms/math/primality-test/README.md
similarity index 100%
rename from src/algorithms/math/primality-tests/README.md
rename to src/algorithms/math/primality-test/README.md
diff --git a/src/algorithms/math/primality-tests/__test__/trialDivision.test.js b/src/algorithms/math/primality-test/__test__/trialDivision.test.js
similarity index 100%
rename from src/algorithms/math/primality-tests/__test__/trialDivision.test.js
rename to src/algorithms/math/primality-test/__test__/trialDivision.test.js
diff --git a/src/algorithms/math/primality-tests/trialDivision.js b/src/algorithms/math/primality-test/trialDivision.js
similarity index 100%
rename from src/algorithms/math/primality-tests/trialDivision.js
rename to src/algorithms/math/primality-test/trialDivision.js