diff --git a/src/Sapfor.cpp b/src/Sapfor.cpp
index 1106d5f..fdcefed 100644
--- a/src/Sapfor.cpp
+++ b/src/Sapfor.cpp
@@ -2662,7 +2662,7 @@ int main(int argc, char **argv)
         printStackTrace();
         printf("exception occurred\n");
         
-        FILE* outF = fopen((string(VISUALIZER_DATA_PATH) + "error_messages.json").c_str(), "w");
+        FILE* outF = fopen((string(VISUALIZER_DATA_PATH) + "/error_messages.json").c_str(), "w");
         if (outF)
         {
             json byFileArray = json::array();