Make running flag volatile

1 files changed, 1 insertions, 1 deletions

diff --git a/vis.c b/vis.c
index 53a7dbd..9054ccc 100644
--- a/vis.c
+++ b/vis.c
@@ -146,7 +146,7 @@ typedef struct {                         /* command definitions for the ':'-prom
 } Command;
 
 /** global variables */
-static bool running = true; /* exit main loop once this becomes false */
+static volatile bool running = true; /* exit main loop once this becomes false */
 static Editor *vis;         /* global editor instance, keeps track of all windows etc. */
 static Mode *mode;          /* currently active mode, used to search for keybindings */
 static Mode *mode_prev;     /* mode which was active previously */