diff --git a/du4/program.c b/du4/program.c
index 0bceb04..7b51d1d 100644
--- a/du4/program.c
+++ b/du4/program.c
@@ -47,7 +47,7 @@ for(;eof!=EOF;count++){
     for(int i=0;eof!='\n';i++){
         eof=getchar();
         if(eof==EOF) break;
-        if(!isdigit(eof) && eof!='.' && eof!=' '){
+        if(!isdigit(eof) && eof!='.' && eof!=' ' && eof!='='){
             k++;
         }
         if(eof!=' '){