diff --git a/src/metawriter.cpp b/src/metawriter.cpp
index c128ef834..460053937 100644
--- a/src/metawriter.cpp
+++ b/src/metawriter.cpp
@@ -96,7 +96,7 @@ metawriter_json_stream::~metawriter_json_stream()
 
 metawriter_json_stream::metawriter_json_stream(metawriter_properties dflt_properties)
     : metawriter(dflt_properties), count_(-1), output_empty_(true),
-      trans_(0), output_srs_("+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs"), f_(0)
+      trans_(0), output_srs_("+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs"), f_(0), pixel_coordinates_(false)
 {
 }