diff --git a/e2e/specs/parameters.spec b/e2e/specs/parameters.spec
index a748d97..f20f0f2 100644
--- a/e2e/specs/parameters.spec
+++ b/e2e/specs/parameters.spec
@@ -6,5 +6,5 @@
 
 ## Custom Parameters in steps
 
-* This step uses a custom parameter of type Person and value "{\"name\":\"John\",\"age\":30}"
-* This step checks if strings with numbers for example "3 % 4" is correct
+* Convert custom parameter of type Person and value "{\"name\":\"John\",\"age\":30}"
+* Check strings with numbers for example "3 % 4" is correct
diff --git a/e2e/tests/parameter.ts b/e2e/tests/parameter.ts
index 4c7f1b2..924d28e 100644
--- a/e2e/tests/parameter.ts
+++ b/e2e/tests/parameter.ts
@@ -8,16 +8,14 @@ export default class Parameter {
     assert.strictEqual(original.trim(), expected);
   }
 
-  @Step("This step uses a custom parameter of type Person and value <person>")
+  @Step("Convert custom parameter of type Person and value <person>")
   public async validatePerson(person: Person) {
     assert.strictEqual(person.name, "John");
     assert.strictEqual(person.age, 30);
     assert.ok(person.isAdult());
   }
-  @Step(
-    "This step checks if strings with numbers for example <value> is correct",
-  )
-  async setFilter(value: string) {
+  @Step("Check strings with numbers for example <value> is correct")
+  async checkStringConversion(value: string) {
     assert.strictEqual(value, "3 % 4");
   }
 }
diff --git a/gauge-ts/src/processors/params/PrimitiveParser.ts b/gauge-ts/src/processors/params/PrimitiveParser.ts
index fee797e..cc19c71 100644
--- a/gauge-ts/src/processors/params/PrimitiveParser.ts
+++ b/gauge-ts/src/processors/params/PrimitiveParser.ts
@@ -27,12 +27,11 @@ export class PrimitiveParser implements ParameterParser {
   }
 
   private convertToNumber(value: string): number | undefined {
-    const trimmedValue = value.trim();
-    if (/^-?\d+(\.\d+)?$/.test(trimmedValue)) {
-      const num = Number.parseFloat(trimmedValue);
-      return Number.isFinite(num) ? num : undefined;
+    if (value.trim() === "") {
+      return undefined;
     }
-    return undefined;
+    const num = Number(value);
+    return Number.isFinite(num) ? num : undefined;
   }
 
   private convertToBoolean(value: string): boolean | undefined {