diff --git a/libavfilter/vf_waveform.c b/libavfilter/vf_waveform.c
index c4f16f7309..1fd89f1164 100644
--- a/libavfilter/vf_waveform.c
+++ b/libavfilter/vf_waveform.c
@@ -1646,25 +1646,25 @@ static int config_input(AVFilterLink *inlink)
     switch (s->scale) {
     case DIGITAL:
         switch (s->bits) {
-        case  8: s->glines = (GraticuleLines *)digital8;  s->nb_glines = FF_ARRAY_ELEMS(digital8); break;
-        case  9: s->glines = (GraticuleLines *)digital9;  s->nb_glines = FF_ARRAY_ELEMS(digital9); break;
+        case  8: s->glines = (GraticuleLines *)digital8;  s->nb_glines = FF_ARRAY_ELEMS(digital8);  break;
+        case  9: s->glines = (GraticuleLines *)digital9;  s->nb_glines = FF_ARRAY_ELEMS(digital9);  break;
         case 10: s->glines = (GraticuleLines *)digital10; s->nb_glines = FF_ARRAY_ELEMS(digital10); break;
         case 12: s->glines = (GraticuleLines *)digital12; s->nb_glines = FF_ARRAY_ELEMS(digital12); break;
         }
         break;
     case MILLIVOLTS:
         switch (s->bits) {
-        case  8: s->glines = (GraticuleLines *)millivolts8;  s->nb_glines = FF_ARRAY_ELEMS(millivolts8); break;
-        case  9: s->glines = (GraticuleLines *)millivolts9;  s->nb_glines = FF_ARRAY_ELEMS(millivolts9); break;
+        case  8: s->glines = (GraticuleLines *)millivolts8;  s->nb_glines = FF_ARRAY_ELEMS(millivolts8);  break;
+        case  9: s->glines = (GraticuleLines *)millivolts9;  s->nb_glines = FF_ARRAY_ELEMS(millivolts9);  break;
         case 10: s->glines = (GraticuleLines *)millivolts10; s->nb_glines = FF_ARRAY_ELEMS(millivolts10); break;
         case 12: s->glines = (GraticuleLines *)millivolts12; s->nb_glines = FF_ARRAY_ELEMS(millivolts12); break;
         }
         break;
     case IRE:
         switch (s->bits) {
-        case  8: s->glines = (GraticuleLines *)ire8;  s->nb_glines = FF_ARRAY_ELEMS(ire8); break;
-        case  9: s->glines = (GraticuleLines *)ire9;  s->nb_glines = FF_ARRAY_ELEMS(ire8); break;
-        case 10: s->glines = (GraticuleLines *)ire10; s->nb_glines = FF_ARRAY_ELEMS(ire8); break;
+        case  8: s->glines = (GraticuleLines *)ire8;  s->nb_glines = FF_ARRAY_ELEMS(ire8);  break;
+        case  9: s->glines = (GraticuleLines *)ire9;  s->nb_glines = FF_ARRAY_ELEMS(ire9);  break;
+        case 10: s->glines = (GraticuleLines *)ire10; s->nb_glines = FF_ARRAY_ELEMS(ire10); break;
         case 12: s->glines = (GraticuleLines *)ire12; s->nb_glines = FF_ARRAY_ELEMS(ire12); break;
         }
         break;