diff --git a/wlopm.c b/wlopm.c
index d257199..fa2ff92 100644
--- a/wlopm.c
+++ b/wlopm.c
@@ -175,7 +175,7 @@ static struct Output *output_from_name (const char *str)
 
 static void output_set_power_mode (struct Output *output, enum Power_mode mode)
 {
-	enum zwlr_output_power_v1_mode new_mode;
+	enum zwlr_output_power_v1_mode new_mode = ZWLR_OUTPUT_POWER_V1_MODE_ON;
 	switch (mode)
 	{
 		case ON: