diff --git a/dev/cuda/gelu_forward.cu b/dev/cuda/gelu_forward.cu
index c795d1d..fad7be8 100644
--- a/dev/cuda/gelu_forward.cu
+++ b/dev/cuda/gelu_forward.cu
@@ -9,7 +9,7 @@ version 1 is naive port from CPU code to kernel
 */
 
 /*
-If encountering "error: identifier "M_PI" is undefined", add the following line to the top of the file:
+If encountering "error: identifier "M_PI" is undefined", add the following lines to the top of the file:
 
 #define _USE_MATH_DEFINES
 #include <math.h>  OR  #include <cmath>