diff --git a/sysdeps/m68k/Makefile b/sysdeps/m68k/Makefile
index fc79d36804..0f811bc62e 100644
--- a/sysdeps/m68k/Makefile
+++ b/sysdeps/m68k/Makefile
@@ -34,3 +34,8 @@ long-double-fcts = yes
 ifeq ($(subdir),elf)
 CFLAGS-rtld.c += -Wno-uninitialized -Wno-unused
 endif
+
+ifeq ($(subdir),math)
+# Avoid a bug in gcc
+CFLAGS-s_copysignl.c += -mnobitfield
+endif