diff --git a/source/arm9/crypto.c b/source/arm9/crypto.c
index 2c9e96c..0e2507e 100644
--- a/source/arm9/crypto.c
+++ b/source/arm9/crypto.c
@@ -178,8 +178,8 @@
 	else ctrIvNonceSize = 3;
 
 	// All writes must finish before using DMA
-	//flushDCacheRange(in, size);
-	flushDCache();
+	flushDCacheRange(in, size);
+	if(in != out) flushDCacheRange(out, size);
 	// Save the original out pointer for later invalidation
 	const u32 *savedOut = out;