diff --git a/QuartoBook/AquaFortR_Codes/cape.f90 b/QuartoBook/AquaFortR_Codes/cape.f90
index ed0a706..3dd9b6b 100644
--- a/QuartoBook/AquaFortR_Codes/cape.f90
+++ b/QuartoBook/AquaFortR_Codes/cape.f90
@@ -1,4 +1,4 @@
-::module tools
+module tools
    implicit none
 
 contains