diff --git a/src/libm/math_private.h b/src/libm/math_private.h
index d3701944b..32e5cda7a 100644
--- a/src/libm/math_private.h
+++ b/src/libm/math_private.h
@@ -40,6 +40,7 @@ typedef unsigned int u_int32_t;
 #define __ieee754_fmod  SDL_uclibc_fmod
 #define __ieee754_log   SDL_uclibc_log
 #define __ieee754_pow   SDL_uclibc_pow
+#define scalbln         SDL_uclibc_scalbln
 #define scalbn          SDL_uclibc_scalbn
 #define sin             SDL_uclibc_sin
 #define __ieee754_sqrt  SDL_uclibc_sqrt