diff --git a/src/cmd/internal/ssa/cse.go b/src/cmd/internal/ssa/cse.go
index 71f23013cf..c44b08f61c 100644
--- a/src/cmd/internal/ssa/cse.go
+++ b/src/cmd/internal/ssa/cse.go
@@ -56,7 +56,7 @@ func cse(f *Func) {
 	}
 
 	// Find an equivalence class where some members of the class have
-	// non-equvalent arguments.  Split the equivalence class appropriately.
+	// non-equivalent arguments.  Split the equivalence class appropriately.
 	// Repeat until we can't find any more splits.
 	for {
 		changed := false