diff --git a/src/include/libplacebo/utils/libav_internal.h b/src/include/libplacebo/utils/libav_internal.h
index 6000a922..0eed809f 100644
--- a/src/include/libplacebo/utils/libav_internal.h
+++ b/src/include/libplacebo/utils/libav_internal.h
@@ -37,7 +37,7 @@
 
 #if LIBAVUTIL_VERSION_INT >= AV_VERSION_INT(57, 8, 100) && \
     defined(PL_HAVE_VULKAN) && defined(VK_API_VERSION_1_2)
-# define HAVE_LAV_VULKAN
+# define PL_HAVE_LAV_VULKAN
 # include <libavutil/hwcontext_vulkan.h>
 # include <libplacebo/vulkan.h>
 #endif
@@ -504,7 +504,7 @@ static inline bool pl_test_pixfmt(pl_gpu gpu, enum AVPixelFormat pixfmt)
     case AV_PIX_FMT_VAAPI:
         return gpu->import_caps.tex & PL_HANDLE_DMA_BUF;
 
-#ifdef HAVE_LAV_VULKAN
+#ifdef PL_HAVE_LAV_VULKAN
     case AV_PIX_FMT_VULKAN:
         return pl_vulkan_get(gpu);
 #endif
@@ -933,7 +933,7 @@ static bool pl_map_avframe_derived(pl_gpu gpu, struct pl_frame *out,
     return false;
 }
 
-#ifdef HAVE_LAV_VULKAN
+#ifdef PL_HAVE_LAV_VULKAN
 static bool pl_acquire_avframe(pl_gpu gpu, struct pl_frame *frame)
 {
     const AVFrame *avframe = frame->user_data;
@@ -1068,7 +1068,7 @@ static inline bool pl_map_avframe_internal(pl_gpu gpu, struct pl_frame *out,
             goto error;
         return true;
 
-#ifdef HAVE_LAV_VULKAN
+#ifdef PL_HAVE_LAV_VULKAN
     case AV_PIX_FMT_VULKAN:
         if (!pl_map_avframe_vulkan(gpu, out, frame))
             goto error;
@@ -1139,7 +1139,7 @@ static inline void pl_unmap_avframe(pl_gpu gpu, struct pl_frame *frame)
     if (!avframe)
         goto done;
 
-#ifdef HAVE_LAV_VULKAN
+#ifdef PL_HAVE_LAV_VULKAN
     if (avframe->format == AV_PIX_FMT_VULKAN)
         pl_unmap_avframe_vulkan(gpu, frame);
 #endif