diff --git a/man7/suffixes.7 b/man7/suffixes.7
index 0f0ade220..bb3b0dd7f 100644
--- a/man7/suffixes.7
+++ b/man7/suffixes.7
@@ -64,7 +64,7 @@ Suffix	File type
  .S	assembler source with \fBcpp\fP(1) directives
  .Y	file compressed using yabba
  .Z	file compressed using \fBcompress\fP(1)
- .[0-\9]+gf	TeX generic font files
+ .[0\-9]+gf	TeX generic font files
  .[0\-9]+pk	TeX packed font files
  .[1\-9]	manual page for the corresponding section
  .[1\-9][a-z]	manual page for section plus subsection