diff --git a/src/core/RagePhoto.c b/src/core/RagePhoto.c
index 659a192..f3da886 100644
--- a/src/core/RagePhoto.c
+++ b/src/core/RagePhoto.c
@@ -1235,6 +1235,7 @@ bool ragephoto_setphotojpeg(ragephoto_t instance, const char *data, uint32_t siz
     else if (instance->data->jpeg) {
         free(instance->data->jpeg);
         instance->data->jpeg = NULL;
+        instance->data->jpegSize = 0;
     }
 
     if (bufferSize != 0) {
diff --git a/src/core/RagePhoto.cpp b/src/core/RagePhoto.cpp
index 5dbdd98..345836a 100644
--- a/src/core/RagePhoto.cpp
+++ b/src/core/RagePhoto.cpp
@@ -1231,6 +1231,7 @@ bool RagePhoto::setJpeg(const char *data, uint32_t size, uint32_t bufferSize)
     else if (m_data->jpeg) {
         free(m_data->jpeg);
         m_data->jpeg = nullptr;
+        m_data->jpegSize = 0;
     }
 
     if (bufferSize != 0) {