diff --git a/app/src/main/java/eu/kanade/tachiyomi/ui/browse/source/globalsearch/GlobalSearchScreenModel.kt b/app/src/main/java/eu/kanade/tachiyomi/ui/browse/source/globalsearch/GlobalSearchScreenModel.kt
index 944c28f17..33c715768 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/browse/source/globalsearch/GlobalSearchScreenModel.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/browse/source/globalsearch/GlobalSearchScreenModel.kt
@@ -10,6 +10,10 @@ class GlobalSearchScreenModel(
     init {
         extensionFilter = initialExtensionFilter
         if (initialQuery.isNotBlank() || !initialExtensionFilter.isNullOrBlank()) {
+            if (extensionFilter != null) {
+                // we're going to use custom extension filter instead
+                setSourceFilter(SourceFilter.All)
+            }
             search()
         }
     }