diff --git a/themes/command_duration.theme.bash b/themes/command_duration.theme.bash
index 1bf969a5..7c19ffda 100644
--- a/themes/command_duration.theme.bash
+++ b/themes/command_duration.theme.bash
@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 
-if [ -z "$BASHIT_COMMAND_DURATION" ] || [ "$BASHIT_COMMAND_DURATION" != true ]; then
+if [ -z "$BASH_IT_COMMAND_DURATION" ] || [ "$BASH_IT_COMMAND_DURATION" != true ]; then
     return
 fi