diff --git a/src/pixie/fileformats/jpeg.nim b/src/pixie/fileformats/jpeg.nim
index ea3d4d5..d734de2 100644
--- a/src/pixie/fileformats/jpeg.nim
+++ b/src/pixie/fileformats/jpeg.nim
@@ -446,8 +446,6 @@ proc decodeSOS(state: var DecoderState) =
   state.successiveApproxLow = aa and 15
   state.successiveApproxHigh = aa shr 4
 
-  state.reset()
-
   if state.progressive:
     if state.spectralStart > 63 or state.spectralEnd > 63:
       failInvalid()
@@ -467,6 +465,8 @@ proc decodeSOS(state: var DecoderState) =
   if len != 0:
     failInvalid()
 
+  state.reset()
+
 proc fillBitBuffer(state: var DecoderState) =
   ## When we are low on bits, we need to call this to populate some more.
   while state.bitsBuffered < 24: