diff --git a/sys/man/1/pc b/sys/man/1/pc
index f6dfee325..a63ff3ea5 100644
--- a/sys/man/1/pc
+++ b/sys/man/1/pc
@@ -1,7 +1,7 @@
 .TH PC 1
 .SH NAME
 pc \- programmer's calculator
-.SH SYNOPSYS
+.SH SYNOPSIS
 .B pc
 [
 .B -n