diff --git a/wasm-ast/src/node.rs b/wasm-ast/src/node.rs
index 2cd3d85..4ea2390 100644
--- a/wasm-ast/src/node.rs
+++ b/wasm-ast/src/node.rs
@@ -184,13 +184,13 @@ impl UnOpType {
 			Self::Clz_I64 => ("clz", "i64"),
 			Self::Ctz_I64 => ("ctz", "i64"),
 			Self::Popcnt_I64 => ("popcnt", "i64"),
-			Self::Abs_FN => ("math", "abs"),
+			Self::Abs_FN => ("abs", "num"),
 			Self::Neg_FN => ("neg", "num"),
-			Self::Ceil_FN => ("math", "ceil"),
-			Self::Floor_FN => ("math", "floor"),
+			Self::Ceil_FN => ("ceil", "num"),
+			Self::Floor_FN => ("floor", "num"),
 			Self::Trunc_FN => ("trunc", "num"),
 			Self::Nearest_FN => ("nearest", "num"),
-			Self::Sqrt_FN => ("math", "sqrt"),
+			Self::Sqrt_FN => ("sqrt", "num"),
 			Self::Wrap_I32_I64 => ("wrap", "i32_i64"),
 			Self::Trunc_I32_F32 => ("trunc", "i32_f32"),
 			Self::Trunc_U32_F32 => ("trunc", "u32_f32"),
@@ -363,8 +363,8 @@ impl BinOpType {
 			Self::Sub_FN => ("sub", "num"),
 			Self::Mul_FN => ("mul", "num"),
 			Self::Div_FN => ("div", "num"),
-			Self::Min_FN => ("math", "min"),
-			Self::Max_FN => ("math", "max"),
+			Self::Min_FN => ("min", "num"),
+			Self::Max_FN => ("max", "num"),
 			Self::Copysign_FN => ("copysign", "num"),
 		}
 	}