diff --git a/libs/voipcodecs/src/lpc10_decode.c b/libs/voipcodecs/src/lpc10_decode.c
index cc72afbfa2..c8142d9550 100644
--- a/libs/voipcodecs/src/lpc10_decode.c
+++ b/libs/voipcodecs/src/lpc10_decode.c
@@ -43,6 +43,13 @@
 #if defined(HAVE_MATH_H)
 #include <math.h>
 #endif
+#if (_MSC_VER = 1400) /* fix for broken header files with msvc 2005*/
+#if !defined (_M_IA64) && !defined (_M_AMD64)
+#undef logf
+#define logf(x)     ((float)log((double)(x)))
+#endif    // !defined (_M_IA64) && !defined (_M_AMD64)
+#endif
+
 #include <memory.h>
 
 #include "voipcodecs/telephony.h"