diff --git a/buildlib/check-build b/buildlib/check-build
index ab8524e..4e52d0d 100755
--- a/buildlib/check-build
+++ b/buildlib/check-build
@@ -84,7 +84,7 @@ def get_symbol_vers(fn,exported=True):
 def check_lib_symver(args,fn):
     g = re.match(r"lib([^.]+)\.so\.(\d+)\.(\d+)\.(.*)",fn);
     if g.group(4) != args.PACKAGE_VERSION:
-        raise ValueError("Shared Library filename %r does not have the package version %r (%r)%"(
+        raise ValueError("Shared Library filename %r does not have the package version %r (%r)"%(
             fn,args.PACKAGE_VERSION,g.groups()));
 
     # umad/etc used the wrong symbol version name when they moved to soname 3.0