diff --git a/profile.d/fun.sh b/profile.d/fun.sh
index 6e0feaa..626b22d 100644
--- a/profile.d/fun.sh
+++ b/profile.d/fun.sh
@@ -108,6 +108,7 @@ busy()
     wait "$sub_pid" 2>/dev/null
     return 0
 }
+export -f busy
 # ------------------------------------------------------------------------------
 
 
@@ -259,6 +260,7 @@ fake_compile()
     wait "$sub_pid" 2>/dev/null
     return 0
 }
+export -f fake_compile
 # ------------------------------------------------------------------------------
 
 
@@ -420,6 +422,7 @@ hack()
     wait "$sub_pid" 2>/dev/null
     return 0
 }
+export -f hack
 # ------------------------------------------------------------------------------