diff --git a/app/src/main/java/org/fdroid/fdroid/data/Apk.java b/app/src/main/java/org/fdroid/fdroid/data/Apk.java
index 28c12bf29..0668c8663 100644
--- a/app/src/main/java/org/fdroid/fdroid/data/Apk.java
+++ b/app/src/main/java/org/fdroid/fdroid/data/Apk.java
@@ -516,7 +516,7 @@ public class Apk extends ValueObject implements Comparable<Apk>, Parcelable {
     }
 
     public boolean isMediaInstalled(Context context) {
-        return new File(this.getMediaInstallPath(context), this.apkName).isFile();
+        return new File(this.getMediaInstallPath(context), SanitizedFile.sanitizeFileName(this.apkName)).isFile();
     }
 
     /**
diff --git a/app/src/test/java/org/fdroid/fdroid/data/SanitizedFileTest.java b/app/src/test/java/org/fdroid/fdroid/data/SanitizedFileTest.java
index a1415c425..fc4dca32b 100644
--- a/app/src/test/java/org/fdroid/fdroid/data/SanitizedFileTest.java
+++ b/app/src/test/java/org/fdroid/fdroid/data/SanitizedFileTest.java
@@ -37,11 +37,11 @@ public class SanitizedFileTest {
 
         assertEquals("/tmp/blah/safe", safeSanitized.getAbsolutePath());
         assertEquals("/tmp/blah/safe-and_bleh.boo", nonEvilSanitized.getAbsolutePath());
-        assertEquals("/tmp/blah/rmetcshadow", evilSanitized.getAbsolutePath());
+        assertEquals("/tmp/blah/rm etcshadow", evilSanitized.getAbsolutePath());
 
         assertEquals("safe", safeSanitized.getName());
         assertEquals("safe-and_bleh.boo", nonEvilSanitized.getName());
-        assertEquals("rmetcshadow", evilSanitized.getName());
+        assertEquals("rm etcshadow", evilSanitized.getName());
 
     }