1 files changed, 2 insertions, 1 deletions

diff --git a/src/_core.scss b/src/_core.scss
index f32ee04..76beb2d 100644
--- a/src/_core.scss
+++ b/src/_core.scss
@@ -1,5 +1,6 @@
 @use 'sass:map';
 @use 'sass:meta';
+@use 'sass:string';
 @use 'iro-sass/src/bem';
 @use 'iro-sass/src/props';
 @use 'config';
@@ -20,7 +21,7 @@
                 }
             }
         } @else {
-            @include bem.theme($theme-name) {
+            @include bem.theme(string.slice($theme-name, 3)) {
                 @include props.materialize(map.get($theme, 'light'));
                 
                 @if map.has-key($theme, 'dark') {