diff --git a/src/math/vec3.rs b/src/math/vec3.rs
index 8088c0c..60cdcad 100644
--- a/src/math/vec3.rs
+++ b/src/math/vec3.rs
@@ -310,6 +310,14 @@ impl Mul<Vec3> for f64 {
     }
 }
 
+impl Mul<&Vec3> for f64 {
+    type Output = Vec3;
+
+    fn mul(self, rhs: &Vec3) -> Vec3 {
+        rhs * self
+    }
+}
+
 #[cfg(test)]
 mod tests {
     use super::*;