diff --git a/host/hackrf-tools/src/hackrf_clock.c b/host/hackrf-tools/src/hackrf_clock.c
index 82d0d25d..36f066c1 100644
--- a/host/hackrf-tools/src/hackrf_clock.c
+++ b/host/hackrf-tools/src/hackrf_clock.c
@@ -28,6 +28,10 @@
 #include <stdlib.h>
 #include <getopt.h>
 
+#ifdef _MSC_VER
+	#define strcasecmp _stricmp
+#endif
+
 #define CLOCK_UNDEFINED  0xFF
 #define REGISTER_INVALID 32767