diff --git a/bytesconv_32.go b/bytesconv_32.go
index baa945953a..3ef1d687d6 100644
--- a/bytesconv_32.go
+++ b/bytesconv_32.go
@@ -1,4 +1,4 @@
-//go:build !amd64 && !arm64 && !ppc64 && !ppc64le && !s390x
+//go:build !amd64 && !arm64 && !ppc64 && !ppc64le && !riscv64 && !s390x
 
 package fasthttp
 
diff --git a/bytesconv_32_test.go b/bytesconv_32_test.go
index b954bbaabc..5b8594f951 100644
--- a/bytesconv_32_test.go
+++ b/bytesconv_32_test.go
@@ -1,4 +1,4 @@
-//go:build !amd64 && !arm64 && !ppc64 && !ppc64le && !s390x
+//go:build !amd64 && !arm64 && !ppc64 && !ppc64le && !riscv64 && !s390x
 
 package fasthttp
 
diff --git a/bytesconv_64.go b/bytesconv_64.go
index e7c01bba43..c40915ee1c 100644
--- a/bytesconv_64.go
+++ b/bytesconv_64.go
@@ -1,4 +1,4 @@
-//go:build amd64 || arm64 || ppc64 || ppc64le || s390x
+//go:build amd64 || arm64 || ppc64 || ppc64le || riscv64 || s390x
 
 package fasthttp
 
diff --git a/bytesconv_64_test.go b/bytesconv_64_test.go
index 8eb5030ffa..4c0153e497 100644
--- a/bytesconv_64_test.go
+++ b/bytesconv_64_test.go
@@ -1,4 +1,4 @@
-//go:build amd64 || arm64 || ppc64 || ppc64le || s390x
+//go:build amd64 || arm64 || ppc64 || ppc64le || riscv64 || s390x
 
 package fasthttp
 
diff --git a/round2_32.go b/round2_32.go
index f7276fc188..9da0e291ec 100644
--- a/round2_32.go
+++ b/round2_32.go
@@ -1,4 +1,4 @@
-//go:build !amd64 && !arm64 && !ppc64 && !ppc64le && !s390x
+//go:build !amd64 && !arm64 && !ppc64 && !ppc64le && !riscv64 && !s390x
 
 package fasthttp
 
diff --git a/round2_32_test.go b/round2_32_test.go
index 51dc2f5a99..7e4145d3e4 100644
--- a/round2_32_test.go
+++ b/round2_32_test.go
@@ -1,4 +1,4 @@
-//go:build !amd64 && !arm64 && !ppc64 && !ppc64le && !s390x
+//go:build !amd64 && !arm64 && !ppc64 && !ppc64le && !riscv64 && !s390x
 
 package fasthttp
 
diff --git a/round2_64.go b/round2_64.go
index e74368cc2e..a05df23297 100644
--- a/round2_64.go
+++ b/round2_64.go
@@ -1,4 +1,4 @@
-//go:build amd64 || arm64 || ppc64 || ppc64le || s390x
+//go:build amd64 || arm64 || ppc64 || ppc64le || riscv64 || s390x
 
 package fasthttp
 
diff --git a/round2_64_test.go b/round2_64_test.go
index 2509ce9004..d7b53d8318 100644
--- a/round2_64_test.go
+++ b/round2_64_test.go
@@ -1,4 +1,4 @@
-//go:build amd64 || arm64 || ppc64 || ppc64le || s390x
+//go:build amd64 || arm64 || ppc64 || ppc64le || riscv64 || s390x
 
 package fasthttp