diff --git a/CMakeLists.txt b/CMakeLists.txt
index b65e3a0b..7077dc42 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -673,7 +673,7 @@ set (hs_exec_SRCS
     src/database.h
 )
 
-if (NOT RELEASE_BUILD)
+if (NOT RELEASE_BUILD OR FAT_RUNTIME)
 if (ARCH_IA32 OR ARCH_X86_64)
 set (hs_exec_SRCS
     ${hs_exec_SRCS}