diff --git a/libFDK/include/cplx_mul.h b/libFDK/include/cplx_mul.h
index 093ffa6..ce5c9f7 100644
--- a/libFDK/include/cplx_mul.h
+++ b/libFDK/include/cplx_mul.h
@@ -96,7 +96,7 @@
 #if defined(__CC_ARM) || defined(__arm__) || defined(_M_ARM)	/* cppp replaced: elif */
 #include "arm/cplx_mul.h"
 
-#elif defined(__GNUC__) && defined(__mips__)	/* cppp replaced: elif */
+#elif defined(__GNUC__) && defined(__mips__) && __mips_isa_rev < 6
 #include "mips/cplx_mul.h"
 
 #endif /* #if defined all cores: bfin, arm, etc. */
diff --git a/libFDK/include/mips/cplx_mul.h b/libFDK/include/mips/cplx_mul.h
index e05d2b6..43cdbd0 100644
--- a/libFDK/include/mips/cplx_mul.h
+++ b/libFDK/include/mips/cplx_mul.h
@@ -89,7 +89,7 @@
 ******************************************************************************/
 
 
-#if defined(__GNUC__) && defined(__mips__)
+#if defined(__GNUC__) && defined(__mips__) && __mips_isa_rev < 6
 
 
 //#define FUNCTION_cplxMultDiv2_32x16