diff --git a/src/utils/Makefile b/src/utils/Makefile
index 8aad813cf..52efc5321 100644
--- a/src/utils/Makefile
+++ b/src/utils/Makefile
@@ -17,6 +17,7 @@ LIB_OBJS= \
 	base64.o \
 	bitfield.o \
 	common.o \
+	crc32.o \
 	ip_addr.o \
 	radiotap.o \
 	trace.o \
diff --git a/wlantest/crc32.c b/src/utils/crc32.c
similarity index 99%
rename from wlantest/crc32.c
rename to src/utils/crc32.c
index adbbda5b7..12d9e2a70 100644
--- a/wlantest/crc32.c
+++ b/src/utils/crc32.c
@@ -9,6 +9,7 @@
 #include "utils/includes.h"
 
 #include "utils/common.h"
+#include "utils/crc32.h"
 
 /*
  * IEEE 802.11 FCS CRC32
diff --git a/src/utils/crc32.h b/src/utils/crc32.h
new file mode 100644
index 000000000..dc31399be
--- /dev/null
+++ b/src/utils/crc32.h
@@ -0,0 +1,14 @@
+/*
+ * 32-bit CRC for FCS calculation
+ * Copyright (c) 2010, Jouni Malinen <j@w1.fi>
+ *
+ * This software may be distributed under the terms of the BSD license.
+ * See README for more details.
+ */
+
+#ifndef CRC32_H
+#define CRC32_H
+
+u32 crc32(const u8 *frame, size_t frame_len);
+
+#endif /* CRC32_H */
diff --git a/wlantest/Makefile b/wlantest/Makefile
index 320fdbbc2..746617598 100644
--- a/wlantest/Makefile
+++ b/wlantest/Makefile
@@ -69,7 +69,6 @@ OBJS += rx_ip.o
 OBJS += rx_tdls.o
 OBJS += bss.o
 OBJS += sta.o
-OBJS += crc32.o
 OBJS += ccmp.o
 OBJS += tkip.o
 OBJS += ctrl.o
@@ -81,7 +80,6 @@ OBJS += gcmp.o
 LIBS += -lpcap
 
 TOBJS += test_vectors.o
-TOBJS += crc32.o
 TOBJS += ccmp.o
 TOBJS += tkip.o
 TOBJS += wep.o
diff --git a/wlantest/process.c b/wlantest/process.c
index 802d0af8f..54ddf6bad 100644
--- a/wlantest/process.c
+++ b/wlantest/process.c
@@ -9,6 +9,7 @@
 #include "utils/includes.h"
 
 #include "utils/common.h"
+#include "utils/crc32.h"
 #include "utils/radiotap.h"
 #include "utils/radiotap_iter.h"
 #include "common/ieee802_11_defs.h"
diff --git a/wlantest/test_vectors.c b/wlantest/test_vectors.c
index b15e5b399..ab9c0a39d 100644
--- a/wlantest/test_vectors.c
+++ b/wlantest/test_vectors.c
@@ -9,6 +9,7 @@
 #include "utils/includes.h"
 
 #include "utils/common.h"
+#include "utils/crc32.h"
 #include "utils/eloop.h"
 #include "common/ieee802_11_defs.h"
 #include "wlantest.h"
diff --git a/wlantest/tkip.c b/wlantest/tkip.c
index ed3d60146..63366d5e2 100644
--- a/wlantest/tkip.c
+++ b/wlantest/tkip.c
@@ -9,6 +9,7 @@
 #include "utils/includes.h"
 
 #include "utils/common.h"
+#include "utils/crc32.h"
 #include "common/ieee802_11_defs.h"
 #include "wlantest.h"
 
diff --git a/wlantest/wep.c b/wlantest/wep.c
index c4137f345..50e371fc5 100644
--- a/wlantest/wep.c
+++ b/wlantest/wep.c
@@ -9,6 +9,7 @@
 #include "utils/includes.h"
 
 #include "utils/common.h"
+#include "utils/crc32.h"
 #include "common/ieee802_11_defs.h"
 #include "wlantest.h"
 
diff --git a/wlantest/wlantest.h b/wlantest/wlantest.h
index 1ff579ffa..0de04c692 100644
--- a/wlantest/wlantest.h
+++ b/wlantest/wlantest.h
@@ -237,7 +237,6 @@ void wlantest_process(struct wlantest *wt, const u8 *data, size_t len);
 void wlantest_process_prism(struct wlantest *wt, const u8 *data, size_t len);
 void wlantest_process_80211(struct wlantest *wt, const u8 *data, size_t len);
 void wlantest_process_wired(struct wlantest *wt, const u8 *data, size_t len);
-u32 crc32(const u8 *frame, size_t frame_len);
 int monitor_init(struct wlantest *wt, const char *ifname);
 int monitor_init_wired(struct wlantest *wt, const char *ifname);
 void monitor_deinit(struct wlantest *wt);