diff --git a/Dockerfile b/Dockerfile
index 4377d61..f125aaf 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -29,7 +29,11 @@ RUN \
 RUN pip install pyocd
 
 RUN \
-    wget "${KEIL_URL}" --progress=bar:force:noscroll -O MDK537.exe; \
+    installerExtension=".exe"; \
+    installer="$(mktemp --suffix="$installerExtension")"; \
+    installerName="$(basename "$installer" | sed "s/$installerExtension$//")"; \
+    rm "$installer"; \
+    wget "${KEIL_URL}" --progress=bar:force:noscroll -O "$installer"; \
     [ "$DEBUG" -eq 1 ] && { \
         apt-get update; \
         apt-get install -y \
@@ -75,7 +79,7 @@ RUN \
             -e ":end q;"; \
         exitCode="$?"; \
         # Kill installer if it got stuck (according to console output)
-        [ "$exitCode" -eq 42 ] && pkill -9 MDK537.exe; \
+        [ "$exitCode" -eq 42 ] && pkill -9 "$installerName"; \
         # Use `sed`s exit code if non-zero
         [ "$exitCode" -ne 0 ] && exit "$exitCode" || \
         # Return true otherwise
@@ -92,7 +96,7 @@ RUN \
                 local exitCode; \
                 exitCodeFile="$(mktemp)"; \
                 { \
-                    2>&1 WINEDEBUG=+all,trace-all,warn-all /usr/bin/entrypoint wine MDK537.exe --batch-install; \
+                    2>&1 WINEDEBUG=+all,trace-all,warn-all /usr/bin/entrypoint wine "$installer" --batch-install; \
                     echo "$?" > "$exitCodeFile"; \
                 } \
                     # Write output to a log file when debugging
@@ -122,7 +126,7 @@ RUN \
                     sleep 1; \
                 done; \
                 # Kill installer after timeout indicated by `maxCount`
-                [ "$x" -eq "$maxCount" ] && { pkill -9 MDK537.exe; mv "$logFile" "$logDir/timeout-try$try.log"; }; \
+                [ "$x" -eq "$maxCount" ] && { pkill -9 "$installerName"; mv "$logFile" "$logDir/timeout-try$try.log"; }; \
             } & \
         }; \
         wait "$pid"; \
@@ -176,7 +180,7 @@ RUN \
     # Cleanup Unnecessary Files
     rm -f "$TIV"; \
     rm -rf "$(/usr/bin/entrypoint winepath 'C:\Keil_v5')/Backup."*; \
-    rm MDK537.exe; \
+    rm "$installer"; \
     rm -f /tmp/.X*-lock; \
     [ "$DEBUG" -eq 1 ] && { \
         apt-get remove -y imagemagick; \