diff --git a/mythtv/filters/linearblend/filter_linearblend.c b/mythtv/filters/linearblend/filter_linearblend.c
index 33513323046..dda046f795c 100644
--- a/mythtv/filters/linearblend/filter_linearblend.c
+++ b/mythtv/filters/linearblend/filter_linearblend.c
@@ -32,9 +32,12 @@ typedef struct LBFilter
 void linearBlend(unsigned char *src, int stride);
 void linearBlendMMX(unsigned char *src, int stride);
 void linearBlend3DNow(unsigned char *src, int stride);
-inline void linearBlendAltivec(unsigned char *src, int stride);
 int linearBlendFilterAltivec(VideoFilter *f, VideoFrame *frame, int field);
 
+#if HAVE_ALTIVEC
+inline void linearBlendAltivec(unsigned char *src, int stride);
+#endif
+
 #ifdef MMX
 
 void linearBlendMMX(unsigned char *src, int stride)