diff --git a/encode_single_video.py b/encode_single_video.py
index cf8c7f2..f86c079 100755
--- a/encode_single_video.py
+++ b/encode_single_video.py
@@ -52,7 +52,7 @@ encoding: dict[str, Any] = {
 
 # program version
 # make tests reproducible by tag
-version = "v0.0.3a2"
+version = "v0.0.3a3"
 
 # always round timestamp to integer
 def now():
@@ -372,10 +372,10 @@ def main(inputfile: str, outputpath: str = "encodes", keepencodes: bool = False)
                 except ffmpy.FFRuntimeError:
                     with open("error.log", "a") as file:
                         file.write(
-                            "FFMPEG error. Failed encoding",
-                            inputfile,
-                            "to",
-                            outputfile,
+                            "FFMPEG error. Failed encoding "
+                            + inputfile
+                            + " to "
+                            + outputfile,
                         )
 
                 endtime = now()
@@ -388,8 +388,7 @@ def main(inputfile: str, outputpath: str = "encodes", keepencodes: bool = False)
                 except ffmpy.FFRuntimeError:
                     with open("error.log", "a") as file:
                         file.write(
-                            "FFMPEG error. To calculate VMAF score of",
-                            outputfile,
+                            "FFMPEG error. To calculate VMAF score of " + outputfile
                         )
 
                 try:
@@ -397,8 +396,7 @@ def main(inputfile: str, outputpath: str = "encodes", keepencodes: bool = False)
                 except ffmpy.FFRuntimeError:
                     with open("error.log", "a") as file:
                         file.write(
-                            "FFMPEG error. To calculate SSIM score of",
-                            outputfile,
+                            "FFMPEG error. To calculate SSIM score of " + outputfile
                         )
 
                 try:
@@ -406,8 +404,7 @@ def main(inputfile: str, outputpath: str = "encodes", keepencodes: bool = False)
                 except ffmpy.FFRuntimeError:
                     with open("error.log", "a") as file:
                         file.write(
-                            "FFMPEG error. To calculate MSE score of",
-                            outputfile,
+                            "FFMPEG error. To calculate MSE score of " + outputfile
                         )
 
                 write_line(