diff --git a/src/indexing/symbindex/symbindex.pysty3 b/src/indexing/symbindex/symbindex.pysty3
index 8aefea5..eaab087 100644
--- a/src/indexing/symbindex/symbindex.pysty3
+++ b/src/indexing/symbindex/symbindex.pysty3
@@ -1,6 +1,8 @@
 __HEADER__(Declaring of math symbols with automatic indexing)
 
-\RequirePackage{imakeidx}
+\@ifclassloaded{beamer}{}{
+  \RequirePackage{imakeidx}
+}
 \RequirePackage{xparse}
 
 % Keys used for declaring symbols
@@ -35,13 +37,15 @@ __HEADER__(Declaring of math symbols with automatic indexing)
       {
         \bool_if:cF { used_#2 }
         {
-          \index[#1]
-            {
-              #7
-              @
-              $#4{#5}#6$
-              #3
-            }
+          \@ifclassloaded{beamer}{}{
+            \index[#1]
+              {
+                #7
+                @
+                $#4{#5}#6$
+                #3
+              }
+          }
           \bool_gset_true:c { used_#2 }
         }
         #4{#5}