diff --git a/src/null_monitor.c b/src/null_monitor.c
index a9b528f0..fa769efa 100644
--- a/src/null_monitor.c
+++ b/src/null_monitor.c
@@ -31,7 +31,7 @@
 #include <string.h>
 #include <math.h>
 
-// The the sole (fake) video mode of our (sole) fake monitor
+// The sole (fake) video mode of our (sole) fake monitor
 //
 static GLFWvidmode getVideoMode(void)
 {