diff --git a/firmware/target/arm/as3525/sansa-clip/lcd-ssd1303.c b/firmware/target/arm/as3525/sansa-clip/lcd-ssd1303.c
index a88e5faa0a..70db6a3f0e 100644
--- a/firmware/target/arm/as3525/sansa-clip/lcd-ssd1303.c
+++ b/firmware/target/arm/as3525/sansa-clip/lcd-ssd1303.c
@@ -70,7 +70,7 @@
 /* DBOP initialisation, do what OF does */
 static void ams3525_dbop_init(void)
 {
-    CGU_DBOP |= (1<<3) | (CLK_DIV(AS3525_PCLK_FREQ, AS3525_DBOP_FREQ) - 1);
+    CGU_DBOP = (1<<3) | (CLK_DIV(AS3525_PCLK_FREQ, AS3525_DBOP_FREQ) - 1);
 
     GPIOB_AFSEL = 0x08; /* DBOP on pin 3 */
     GPIOC_AFSEL = 0x0f; /* DBOP on pins 3:0 */