diff --git a/app/task/export/export.cpp b/app/task/export/export.cpp
index fbd7f905e..57f23df6d 100644
--- a/app/task/export/export.cpp
+++ b/app/task/export/export.cpp
@@ -118,8 +118,17 @@ bool ExportTask::Run()
 void FrameColorConvert(ColorProcessorPtr processor, FramePtr frame)
 {
   // OCIO conversion requires a frame in 32F format
-  if (frame->format() != PixelFormat::PIX_FMT_RGBA32F) {
-    frame = PixelFormat::ConvertPixelFormat(frame, PixelFormat::PIX_FMT_RGBA32F);
+  if (frame->format() != PixelFormat::PIX_FMT_RGBA32F
+      && frame->format() != PixelFormat::PIX_FMT_RGB32F) {
+    PixelFormat::Format dst;
+
+    if (PixelFormat::FormatHasAlphaChannel(frame->format())) {
+      dst = PixelFormat::PIX_FMT_RGBA32F;
+    } else {
+      dst = PixelFormat::PIX_FMT_RGB32F;
+    }
+
+    frame = PixelFormat::ConvertPixelFormat(frame, dst);
   }
 
   // Color conversion must be done with unassociated alpha, and the pipeline is always associated