diff --git a/c.nanorc b/c.nanorc
index f99bf8f..d05f482 100644
--- a/c.nanorc
+++ b/c.nanorc
@@ -36,6 +36,9 @@ color cyan "<[^= 	]*>" ""(\\.|[^"])*""
 ## This string is VERY resource intensive!
 #color cyan start=""(\\.|[^"])*\\[[:space:]]*$" end="^(\\.|[^"])*""
 
+## printf-family format specifiers
+color yellow "%(\#|(0-+))?(hh|h|l|ll|q|L|j|z|Z|t)?[A-Za-z]" "%%"
+
 ## Comment highlighting
 color brightblue "//.*"
 color brightblue start="/\*" end="\*/"