diff --git a/src/mat.zig b/src/mat.zig
index 96d960d..589084c 100644
--- a/src/mat.zig
+++ b/src/mat.zig
@@ -126,9 +126,9 @@ pub fn Mat(
         /// ----------------------------------------------------
         pub inline fn mulVec(self: Self, v: Vec(T, Col)) Vec(T, Row) {
             var result: [Row]T = undefined;
-            for (0..Row) |r| {
+            inline for (0..Row) |r| {
                 var sum: T = @as(T, 0);
-                for (0..Col) |c| {
+                inline for (0..Col) |c| {
                     sum += self.value[r][c] * v.value[c];
                 }
                 result[r] = sum;