diff --git a/src/add-ons/accelerants/radeon_hd/display.cpp b/src/add-ons/accelerants/radeon_hd/display.cpp
index 9a359880e6..c694b2e39e 100644
--- a/src/add-ons/accelerants/radeon_hd/display.cpp
+++ b/src/add-ons/accelerants/radeon_hd/display.cpp
@@ -477,7 +477,7 @@ display_crtc_dpms(uint8 crtcID, int mode)
 	radeon_shared_info &info = *gInfo->shared_info;
 
 	switch (mode) {
-        case B_DPMS_ON:
+		case B_DPMS_ON:
 			TRACE("%s: crtc %" B_PRIu8 " dpms powerup\n", __func__, crtcID);
 			if (gDisplay[crtcID]->attached == false)
 				return;
@@ -487,9 +487,9 @@ display_crtc_dpms(uint8 crtcID, int mode)
 				display_crtc_memreq(crtcID, ATOM_ENABLE);
 			display_crtc_blank(crtcID, ATOM_BLANKING_OFF);
 			break;
-        case B_DPMS_STAND_BY:
-        case B_DPMS_SUSPEND:
-        case B_DPMS_OFF:
+		case B_DPMS_STAND_BY:
+		case B_DPMS_SUSPEND:
+		case B_DPMS_OFF:
 			TRACE("%s: crtc %" B_PRIu8 " dpms powerdown\n", __func__, crtcID);
 			if (gDisplay[crtcID]->attached == false)
 				return;