diff --git a/src/check-symbols.sh b/src/check-symbols.sh
index a7eb97b01..95cc2a314 100755
--- a/src/check-symbols.sh
+++ b/src/check-symbols.sh
@@ -27,7 +27,7 @@ for soname in harfbuzz harfbuzz-subset harfbuzz-icu harfbuzz-gobject; do
 		symprefix=
 		if test $suffix = dylib; then symprefix=_; fi
 
-		EXPORTED_SYMBOLS=`nm "$so" | grep ' [BCDGINRST] .' | grep -v " $symprefix\\($IGNORED_SYMBOLS\\>\\)" | cut -d' ' -f3 | c++filt`
+		EXPORTED_SYMBOLS=`nm "$so" | grep ' [BCDGIRST] .' | grep -v " $symprefix\\($IGNORED_SYMBOLS\\>\\)" | cut -d' ' -f3 | c++filt`
 
 		prefix=$symprefix`basename "$so" | sed 's/libharfbuzz/hb/; s/-/_/g; s/[.].*//'`