diff --git a/SConstruct b/SConstruct
index b97e444..467e347 100644
--- a/SConstruct
+++ b/SConstruct
@@ -122,7 +122,7 @@ if GetOption('coverage'):
 
 # Generate substitute dictionary
 subst_info = dict(('@' + key + '@', version_info[key]) for key in version_info)
-subst_info['@prefix'] = prefix
+subst_info['@prefix@'] = prefix
 subst_info['@build_host@'] = platform.node()
 
 Export('env', 'build_type', 'prefix', 'version_info', 'test_xml', 'subst_info')