diff --git a/.changeset/famous-buses-remain.md b/.changeset/famous-buses-remain.md
new file mode 100644
index 00000000..7d25192e
--- /dev/null
+++ b/.changeset/famous-buses-remain.md
@@ -0,0 +1,5 @@
+---
+"@fleet-sdk/core": patch
+---
+
+Fix wrong minimal amount estimation while minting a token.
diff --git a/packages/core/src/builder/outputBuilder.spec.ts b/packages/core/src/builder/outputBuilder.spec.ts
index e502f6aa..9d9aa47d 100644
--- a/packages/core/src/builder/outputBuilder.spec.ts
+++ b/packages/core/src/builder/outputBuilder.spec.ts
@@ -464,6 +464,9 @@ describe("Building", () => {
 
     output.addTokens({ tokenId: tokenB, amount: 90n });
     expect(output.value).toBe(52200n);
+
+    output.mintToken({ amount: 100n });
+    expect(output.value).toBe(64080n);
   });
 
   it("Should estimate min box value with custom value per byte", () => {
diff --git a/packages/core/src/builder/outputBuilder.ts b/packages/core/src/builder/outputBuilder.ts
index 53857780..0634ad2e 100644
--- a/packages/core/src/builder/outputBuilder.ts
+++ b/packages/core/src/builder/outputBuilder.ts
@@ -217,6 +217,13 @@ export class OutputBuilder {
     assert(!!this.creationHeight, "Creation height must be set");
 
     const tokens = this._tokens.toArray();
+    if (this.minting) {
+      tokens.push({
+        tokenId: "0000000000000000000000000000000000000000000000000000000000000000",
+        amount: this.minting.amount
+      });
+    }
+
     const plainBoxObject: BoxCandidate<bigint> = {
       value,
       ergoTree: this.ergoTree,