diff --git a/internal/rosa/rosa.go b/internal/rosa/rosa.go
index 1e02fac..53442ce 100644
--- a/internal/rosa/rosa.go
+++ b/internal/rosa/rosa.go
@@ -99,7 +99,7 @@ func earlyCXXFLAGS() string {
 }
 
 // Toolchain denotes the infrastructure to compile a [pkg.Artifact] on.
-type Toolchain uintptr
+type Toolchain uint32
 
 const (
 	// _toolchainBusybox denotes a busybox installation from the busyboxBin