diff --git a/gfx/filters/blargg_ntsc_snes_rgb.c b/gfx/filters/blargg_ntsc_snes_rgb.c
index 168e6b0df5..42f7374a7f 100755
--- a/gfx/filters/blargg_ntsc_snes_rgb.c
+++ b/gfx/filters/blargg_ntsc_snes_rgb.c
@@ -208,4 +208,6 @@ const struct softfilter_implementation *softfilter_get_implementation(softfilter
 
 #ifdef RARCH_INTERNAL
 #undef softfilter_get_implementation
+#undef softfilter_thread_data
+#undef filter_data
 #endif
diff --git a/gfx/filters/lq2x.c b/gfx/filters/lq2x.c
index bfa32b3dde..9c7b82f5e5 100644
--- a/gfx/filters/lq2x.c
+++ b/gfx/filters/lq2x.c
@@ -269,4 +269,6 @@ const struct softfilter_implementation *softfilter_get_implementation(softfilter
 
 #ifdef RARCH_INTERNAL
 #undef softfilter_get_implementation
+#undef softfilter_thread_data
+#undef filter_data
 #endif
diff --git a/gfx/filters/super2xsai.c b/gfx/filters/super2xsai.c
index 420cc1980b..c16ce544fe 100644
--- a/gfx/filters/super2xsai.c
+++ b/gfx/filters/super2xsai.c
@@ -329,4 +329,6 @@ const struct softfilter_implementation *softfilter_get_implementation(softfilter
 
 #ifdef RARCH_INTERNAL
 #undef softfilter_get_implementation
+#undef softfilter_thread_data
+#undef filter_data
 #endif