diff --git a/libobs/obs-audio-controls.c b/libobs/obs-audio-controls.c
index 8538300789408630b9b0815d9bdb0387aa6a7e77..8c835d3387c2c3def7c9a975971d81b1c22109cd 100644
--- a/libobs/obs-audio-controls.c
+++ b/libobs/obs-audio-controls.c
@@ -302,7 +302,7 @@ static inline __m128 abs_ps(__m128 v)
 
 /* x4(d, c, b, a)  -->  max(a, b, c, d)
  */
-inline float hmax_ps(__m128 x4)
+static inline float hmax_ps(__m128 x4)
 {
 	float x4_mem[4];
 	_mm_store_ps(x4_mem, x4);