diff --git a/Makefile b/Makefile
index c66179f..d2934f7 100644
--- a/Makefile
+++ b/Makefile
@@ -3,7 +3,7 @@ NDHC_OBJS = $(NDHC_SRCS:.c=.o)
 NDHC_DEP = $(NDHC_SRCS:.c=.d)
 INCL = -I.
 
-CFLAGS = -MMD -O2 -s -std=gnu99 -pedantic -Wall -Wextra -Wimplicit-fallthrough=0 -Wformat=2 -Wformat-nonliteral -Wformat-security -Wshadow -Wpointer-arith -Wmissing-prototypes -Wunused-const-variable=0 -Wcast-qual -Wsign-conversion -D_GNU_SOURCE -DNK_USE_CAPABILITY -Wno-discarded-qualifiers
+CFLAGS = -MMD -O2 -s -std=gnu99 -pedantic -Wall -Wextra -Wimplicit-fallthrough=0 -Wformat=2 -Wformat-nonliteral -Wformat-security -Wshadow -Wpointer-arith -Wmissing-prototypes -Wunused-const-variable=0 -Wcast-qual -Wsign-conversion -D_GNU_SOURCE -Wno-discarded-qualifiers
 CPPFLAGS += $(INCL)
 
 all: ragel ndhc
diff --git a/nk/privs.c b/nk/privs.c
index 82873af..38f69a0 100644
--- a/nk/privs.c
+++ b/nk/privs.c
@@ -29,7 +29,7 @@ void nk_set_chroot(const char *chroot_dir)
         suicide("%s: chdir('/') failed: %s", __func__, strerror(errno));
 }
 
-#ifdef NK_USE_CAPABILITY
+#ifdef __linux__
 static size_t nk_get_capability_vinfo(uint32_t *version)
 {
     struct __user_cap_header_struct hdr;