diff --git a/src/demo/demo.c b/src/demo/demo.c
index 676e29da8..e60aeb3b1 100644
--- a/src/demo/demo.c
+++ b/src/demo/demo.c
@@ -490,7 +490,7 @@ summary_table(struct ncdirect* nc, const char* spec){
   ncdirect_fg_rgb8(nc, 0xfe, 0x20, 0x76); // PANTONE Strong Red C + 3x0x20
   fflush(stdout); // in case we print to stderr below, we want color from above
   fprintf(stderr, "\nDFSG version. Some demos are unavailable.\n");
-#elif !defined(USE_MULTIMEDIA) // don't double-print for DFSG
+#elif !defined(NOTCURSES_USE_MULTIMEDIA) // don't double-print for DFSG
   ncdirect_fg_rgb8(nc, 0xfe, 0x20, 0x76); // PANTONE Strong Red C + 3x0x20
   fflush(stdout); // in case we print to stderr below, we want color from above
   fprintf(stderr, "\nNo multimedia support. Some demos are unavailable.\n");
diff --git a/src/demo/fallin.c b/src/demo/fallin.c
index a229c5ffa..25e53741a 100644
--- a/src/demo/fallin.c
+++ b/src/demo/fallin.c
@@ -175,7 +175,7 @@ int fallin_demo(struct notcurses* nc){
     }
   }
   ncplane_erase(stdn);
-#ifdef USE_MULTIMEDIA
+#ifdef NOTCURSES_USE_MULTIMEDIA
 #ifndef DFSG_BUILD
   char* path = find_data("lamepatents.jpg");
   struct ncvisual* ncv = ncvisual_from_file(path);
diff --git a/tests/visual.cpp b/tests/visual.cpp
index f5a0692d3..6f16775c2 100644
--- a/tests/visual.cpp
+++ b/tests/visual.cpp
@@ -11,7 +11,7 @@ TEST_CASE("Visual") {
   auto n_ = notcurses_stdplane(nc_);
   REQUIRE(n_);
 
-#ifndef USE_MULTIMEDIA
+#ifndef NOTCURSES_USE_MULTIMEDIA
   SUBCASE("VisualDisabled"){
     REQUIRE(!notcurses_canopen_images(nc_));
     REQUIRE(!notcurses_canopen_videos(nc_));
diff --git a/tools/version.h.in b/tools/version.h.in
index 265506e75..d75d63fa7 100644
--- a/tools/version.h.in
+++ b/tools/version.h.in
@@ -10,6 +10,6 @@
 #cmakedefine USE_OIIO
 // set if either USE_FFMPEG || USE_OIIO
 #if defined(USE_FFMPEG) || defined(USE_OIIO)
-#define USE_MULTIMEDIA
+#define NOTCURSES_USE_MULTIMEDIA
 #endif
 #define NOTCURSES_SHARE "@CMAKE_INSTALL_FULL_DATADIR@/notcurses"