diff --git a/doc/debugging_with_gdb.html b/doc/debugging_with_gdb.html
index f3333fe..ed59cc8 100644
--- a/doc/debugging_with_gdb.html
+++ b/doc/debugging_with_gdb.html
@@ -13,7 +13,7 @@
 Note that 
 <a href="https://github.com/derekparker/delve">Delve</a> is a better 
 alternative to GDB when debugging Go programs built with the standard
-tool chain. It understands the Go runtime, data structures, and
+toolchain. It understands the Go runtime, data structures, and
 expressions better than GDB. Delve currently supports Linux, OSX,
 and Windows on <code>amd64</code>.
 For the most up-to-date list of supported platforms, please see
@@ -113,7 +113,7 @@
 
 <p>
 A recent extension mechanism to GDB allows it to load extension scripts for a
-given binary. The tool chain uses this to extend GDB with a handful of
+given binary. The toolchain uses this to extend GDB with a handful of
 commands to inspect internals of the runtime code (such as goroutines) and to
 pretty print the built-in map, slice and channel types.
 </p>