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-rw-r--r--snakemake-mode.el2
1 files changed, 1 insertions, 1 deletions
diff --git a/snakemake-mode.el b/snakemake-mode.el
index 9a8a150..4bef4f4 100644
--- a/snakemake-mode.el
+++ b/snakemake-mode.el
@@ -386,7 +386,7 @@ For automatic highlighting of embedded regions, you need to set
(unless (require 'mmm-mode nil t)
(user-error "You need to install mmm-mode"))
- (when (unless mmm-global-mode)
+ (when (unless (bound-and-true-p mmm-global-mode))
(display-warning 'snakemake-mode "To get automatic syntax highlighting of
embedded R, you need to set mmm-global-mode to a non-nil value such as 'maybe."))