grammar fix
diff --git a/auto/options b/auto/options
index fabd5d0..8c78dbe 100644
--- a/auto/options
+++ b/auto/options
@@ -356,7 +356,7 @@
                                      pentium, pentiumpro, pentium3, pentium4,
                                      athlon, opteron, sparc32, sparc64, ppc64
 
-  --without-pcre                     disable PCRE libarary usage
+  --without-pcre                     disable PCRE library usage
   --with-pcre=DIR                    set path to PCRE library sources
   --with-pcre-opt=OPTIONS            set additional options for PCRE building