diff --git a/renderdoc/driver/shaders/spirv/spirv_debug_setup.cpp b/renderdoc/driver/shaders/spirv/spirv_debug_setup.cpp
index 0a436d7fb..217ad3c5d 100644
--- a/renderdoc/driver/shaders/spirv/spirv_debug_setup.cpp
+++ b/renderdoc/driver/shaders/spirv/spirv_debug_setup.cpp
@@ -3584,7 +3584,9 @@ DeviceOpResult Debugger::ReadFromPointer(const ShaderVariable &ptr, ShaderVariab
       for(uint32_t row = 0; row < ret.rows; row++)
         copyComp(ret, row, tmp, row * ret.columns + scalar0);
 
-      // it's a vector now, even if it was a matrix before
+      // it's a vector now, even if it was a matrix before.
+      // since we have the convention of row vectors in RenderDoc, adjust the size too
+      ret.columns = ret.rows;
       ret.rows = 1;
     }
   }