1 files changed, 6 insertions, 3 deletions
diff --git a/src/feh_png.c b/src/feh_png.c
index d27df01..8f5b94d 100644
--- a/src/feh_png.c
+++ b/src/feh_png.c
@@ -23,13 +23,13 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
 */
 
-#include "feh_png.h"
-
 #include <png.h>
 
 #include <stdio.h>
 #include <stdarg.h>
 
+#include "feh_png.h"
+
 #define FEH_PNG_COMPRESSION 3
 #define FEH_PNG_NUM_COMMENTS 4
 
@@ -197,7 +197,10 @@ int feh_png_file_is_png(FILE * fp)
 {
 	unsigned char buf[8];
 
-	fread(buf, 1, 8, fp);
+	if (fread(buf, 1, 8, fp) != 8) {
+		return 0;
+	}
+
 	if (png_sig_cmp(buf, 0, 8)) {
 		return 0;
 	}