diff --git a/cmake/build_helpers.cmake b/cmake/build_helpers.cmake
index 4acbeaab4..f7ff3b83f 100644
--- a/cmake/build_helpers.cmake
+++ b/cmake/build_helpers.cmake
@@ -405,7 +405,7 @@ function(downloadImHexPatternsFiles dest)
     if (EXISTS ${imhex_patterns_SOURCE_DIR})
         set(PATTERNS_FOLDERS_TO_INSTALL constants encodings includes patterns magic)
         foreach (FOLDER ${PATTERNS_FOLDERS_TO_INSTALL})
-            install(DIRECTORY "${imhex_patterns_SOURCE_DIR}/${FOLDER}" DESTINATION ${dest})
+            install(DIRECTORY "${imhex_patterns_SOURCE_DIR}/${FOLDER}" DESTINATION ${dest} PATTERN "**/_schema.json" EXCLUDE)
         endforeach ()
     endif ()