diff --git a/src/tools/bootimage-generator/main.cpp b/src/tools/bootimage-generator/main.cpp
index 8860496be3..201cd50648 100644
--- a/src/tools/bootimage-generator/main.cpp
+++ b/src/tools/bootimage-generator/main.cpp
@@ -1851,10 +1851,6 @@ void writeBootImage2(Thread* t,
       abort();
     }
 
-    SymbolInfo bootimageSymbols[]
-        = {SymbolInfo(0, bootimageStart),
-           SymbolInfo(bootimageData.length, bootimageEnd)};
-
     uint8_t* bootimage;
     unsigned bootimageLength;
     if (useLZMA) {
@@ -1874,6 +1870,10 @@ void writeBootImage2(Thread* t,
       bootimageLength = bootimageData.length;
     }
 
+    SymbolInfo bootimageSymbols[]
+        = {SymbolInfo(0, bootimageStart),
+           SymbolInfo(bootimageLength, bootimageEnd)};
+
     platform->writeObject(bootimageOutput,
                           Slice<SymbolInfo>(bootimageSymbols, 2),
                           Slice<const uint8_t>(bootimage, bootimageLength),