diff --git a/ac/ebml_matroska_internal.m4 b/ac/ebml_matroska_internal.m4
index fbbe27645..cf6fa8477 100644
--- a/ac/ebml_matroska_internal.m4
+++ b/ac/ebml_matroska_internal.m4
@@ -5,6 +5,7 @@ EBML_CFLAGS="-Ilib/libebml"
 EBML_LDFLAGS="-Llib/libebml/src"
 EBML_LIBS="-lebml"
 EBML_MATROSKA_INTERNAL=yes
+LIBMTXCOMMONDLL=0
 MATROSKA_CFLAGS="-Ilib/libmatroska"
 MATROSKA_LDFLAGS="-Llib/libmatroska/src"
 MATROSKA_LIBS="-lmatroska"