diff --git a/src/template/.similar b/src/template/.similar
index 444f8c647b81333391f15b2272fd7b6712864bb9..f19ce14d034064ece1dc724b971c003865675469 100644
--- a/src/template/.similar
+++ b/src/template/.similar
@@ -1,5 +1,5 @@
 # Format of this file is expr-style-regular-expression=templatefilename
-alpha-unknown-linux-gnu=linux_alpha
+alpha[a-z0-9]*-unknown-linux-gnu=linux_alpha
 alpha[a-z0-9]*-dec-osf=alpha_cc
 arm-unknown-linux-gnu=linux_arm
 hppa[0-9.]*-hp-hpux=hpux_cc