1 files changed, 1 insertions, 1 deletions

diff --git a/miscutils/bc.c b/miscutils/bc.c
index 8befc8e3f..dd2d7f22c 100644
--- a/miscutils/bc.c
+++ b/miscutils/bc.c
@@ -7302,7 +7302,7 @@ static const char bc_lib[] ALIGN1 = {
 "\n"            "a=(x^n)/2^n/a"
 "\n"            "r=v=1"
 "\n"            "f=-x*x/4"
-"\n"            "scale=scale+length(a)-scale(a)"
+"\n"            "scale+=length(a)-scale(a)"
 "\n"            "for(i=1;v;++i){"
 "\n"                    "v=v*f/i/(n+i)"
 "\n"                    "r+=v"