diff --git a/Docs/src/build.but b/Docs/src/build.but
index 96c4acd2..d1a4cf51 100644
--- a/Docs/src/build.but
+++ b/Docs/src/build.but
@@ -105,7 +105,7 @@ To build NSIS Menu, install \W{http://www.wxwidgets.org/}{wxWidgets 2.8}, create
 
 As of NSIS 2.01, the compiler, makensis, also compiles on POSIX platforms. POSIX platforms include Linux, *BSD, Mac OS X and others. Since the generated installer will eventually run on Windows, a \W{http://www.libsdl.org/extras/win32/cross/README.txt}{cross-compiler} is needed in order to compile them.
 
-The command line option XGCC_W32_PREFIX could be used to explicitly select a specific win32 targeted cross compiler. The value of XGCC_W32_PREFIX has to be the prefix of the toolchain. For example XGCC_W32_PREFIX=i686-w64-mingw32 would deploy the win32 targeted MinGW-w64 cross compiler if it is available on the build system.
+The command line option XGCC_W32_PREFIX could be used to explicitly select a specific win32 targeted cross compiler. The value of XGCC_W32_PREFIX has to be the prefix of the toolchain. For example XGCC_W32_PREFIX=i686-w64-mingw32- would deploy the win32 targeted MinGW-w64 cross compiler if it is available on the build system.
 
 If no cross-compiler is available, use the following: