diff --git a/src/check-libstdc++.py b/src/check-libstdc++.py
index 85b726531..e70d5f80b 100755
--- a/src/check-libstdc++.py
+++ b/src/check-libstdc++.py
@@ -19,7 +19,7 @@ stat = 0
 tested = False
 
 # harfbuzz-icu links to libstdc++ because icu does.
-for soname in ['harfbuzz', 'harfbuzz-subset', 'harfbuzz-gobject']:
+for soname in ['harfbuzz', 'harfbuzz-subset', 'harfbuzz-gobject', 'harfbuzz-cairo']:
 	for suffix in ['so', 'dylib']:
 		so = os.path.join (libs, 'lib%s.%s' % (soname, suffix))
 		if not os.path.exists (so): continue
diff --git a/src/check-symbols.py b/src/check-symbols.py
index d0b8bd3c8..91bf8b067 100755
--- a/src/check-symbols.py
+++ b/src/check-symbols.py
@@ -22,7 +22,7 @@ cxxfilt = shutil.which ('c++filt')
 tested = False
 stat = 0
 
-for soname in ['harfbuzz', 'harfbuzz-subset', 'harfbuzz-icu', 'harfbuzz-gobject']:
+for soname in ['harfbuzz', 'harfbuzz-subset', 'harfbuzz-icu', 'harfbuzz-gobject', 'harfbuzz-cairo']:
 	for suffix in ['so', 'dylib']:
 		so = os.path.join (builddir, libs, 'lib%s.%s' % (soname, suffix))
 		if not os.path.exists (so): continue