diff --git a/src.ts/abi/fragments.ts b/src.ts/abi/fragments.ts
index 0c8aa45abe..c68de00283 100644
--- a/src.ts/abi/fragments.ts
+++ b/src.ts/abi/fragments.ts
@@ -689,7 +689,7 @@ export class ParamType {
      */
     walk(value: any, process: ParamTypeWalkFunc): any {
         if (this.isArray()) {
-            if (!Array.isArray(value)) { throw new Error("invlaid array value"); }
+            if (!Array.isArray(value)) { throw new Error("invalid array value"); }
             if (this.arrayLength !== -1 && value.length !== this.arrayLength) {
                 throw new Error("array is wrong length");
             }
@@ -698,7 +698,7 @@ export class ParamType {
         }
 
         if (this.isTuple()) {
-            if (!Array.isArray(value)) { throw new Error("invlaid tuple value"); }
+            if (!Array.isArray(value)) { throw new Error("invalid tuple value"); }
             if (value.length !== this.components.length) {
                 throw new Error("array is wrong length");
             }
@@ -712,7 +712,7 @@ export class ParamType {
     #walkAsync(promises: Array<Promise<void>>, value: any, process: ParamTypeWalkAsyncFunc, setValue: (value: any) => void): void {
 
         if (this.isArray()) {
-            if (!Array.isArray(value)) { throw new Error("invlaid array value"); }
+            if (!Array.isArray(value)) { throw new Error("invalid array value"); }
             if (this.arrayLength !== -1 && value.length !== this.arrayLength) {
                 throw new Error("array is wrong length");
             }
@@ -738,7 +738,7 @@ export class ParamType {
 
             } else {
                 if (value == null || typeof(value) !== "object") {
-                    throw new Error("invlaid tuple value");
+                    throw new Error("invalid tuple value");
                 }
 
                 result = components.map((param) => {
diff --git a/src.ts/crypto/signature.ts b/src.ts/crypto/signature.ts
index a189c70294..4e73d992a2 100644
--- a/src.ts/crypto/signature.ts
+++ b/src.ts/crypto/signature.ts
@@ -299,7 +299,7 @@ export class Signature {
                 return new Signature(_guard, r, hexlify(s), v);
             }
 
-            assertError(false, "invlaid raw signature length");
+            assertError(false, "invalid raw signature length");
         }
 
         if (sig instanceof Signature) { return sig.clone(); }