diff --git a/renderdoc/driver/gl/gl_replay.cpp b/renderdoc/driver/gl/gl_replay.cpp
index 26194a539..3f52e15df 100644
--- a/renderdoc/driver/gl/gl_replay.cpp
+++ b/renderdoc/driver/gl/gl_replay.cpp
@@ -2299,6 +2299,8 @@ void GLReplay::GetTextureData(ResourceId tex, uint32_t arrayIdx, uint32_t mip,
     // array size doesn't get mip'd down
     depth = 1;
     arraysize = texDetails.depth;
+    if(texType == eGL_TEXTURE_1D_ARRAY)
+      arraysize = texDetails.height;
   }
 
   if(params.remap != RemapTexture::NoRemap)