diff --git a/types/ramda/index.d.ts b/types/ramda/index.d.ts
index 72784cbff5..d4839041af 100644
--- a/types/ramda/index.d.ts
+++ b/types/ramda/index.d.ts
@@ -1316,12 +1316,14 @@ declare namespace R {
         /**
          * Returns true if the first parameter is less than the second.
          */
+        lt(__: Placeholder, b: number): (a: number) => boolean;
         lt(a: number, b: number): boolean;
         lt(a: number): (b: number) => boolean;
 
         /**
          * Returns true if the first parameter is less than or equal to the second.
          */
+        lte(__: Placeholder, b: number): (a: number) => boolean;
         lte(a: number, b: number): boolean;
         lte(a: number): (b: number) => boolean;
 
diff --git a/types/ramda/ramda-tests.ts b/types/ramda/ramda-tests.ts
index 5371520221..3854403980 100644
--- a/types/ramda/ramda-tests.ts
+++ b/types/ramda/ramda-tests.ts
@@ -133,6 +133,8 @@ class F2 {
   R.gt(R.__, 2)(10); // true
   R.gte(R.__, 6)(2); // false
   R.has(R.__, {x: 0, y: 0})('x'); // true;
+  R.lt(R.__, 5)(10); // false
+  R.lte(R.__, 2)(1); // true
   R.mathMod(R.__, 12)(15); // 3
   R.merge(R.__, {x: 0})({x: 5, y: 2}); // {x: 0, y: 2}
 };