diff --git a/configure.py b/configure.py
index 583a0ab6..7da386d5 100644
--- a/configure.py
+++ b/configure.py
@@ -797,7 +797,7 @@ config.libs = [
             Object(Matching, "jaudio_NES/internal/channel.c"),
             Object(Matching, "jaudio_NES/internal/cmdstack.c"),
             Object(Matching, "jaudio_NES/internal/connect.c"),
-            Object(NonMatching, "jaudio_NES/internal/driver.c", extra_cflags=["-vector on"]),
+            Object(Equivalent, "jaudio_NES/internal/driver.c", extra_cflags=["-vector on"]),
             Object(Matching, "jaudio_NES/internal/driverinterface.c"),
             Object(Matching, "jaudio_NES/internal/dsp_cardunlock.c"),
             Object(Matching, "jaudio_NES/internal/dsp_GBAKey.c"),
@@ -811,7 +811,7 @@ config.libs = [
             Object(Matching, "jaudio_NES/internal/ja_calc.c", extra_cflags=["-sym off"]),
             Object(NonMatching, "jaudio_NES/internal/jammain_2.c", extra_cflags=["-sym on"]),
             Object(Matching, "jaudio_NES/internal/jamosc.c"),
-            Object(NonMatching, "jaudio_NES/internal/memory.c", extra_cflags=["-pragma \"scheduling 7400\""]),
+            Object(Equivalent, "jaudio_NES/internal/memory.c", extra_cflags=["-pragma \"scheduling 7400\""]),
             Object(Matching, "jaudio_NES/internal/midplay.c"),
             Object(Matching, "jaudio_NES/internal/noteon.c"),
             Object(Matching, "jaudio_NES/internal/oneshot.c"),