diff --git a/Makefile.am b/Makefile.am
index 42b7a33a..d9389101 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -46,7 +46,7 @@ cgminer_SOURCES += adl.c adl.h adl_functions.h
 cgminer_SOURCES += *.cl
 
 if HAS_SCRYPT
-cgminer_SOURCES += scrypt.c
+cgminer_SOURCES += scrypt.c scrypt.h
 endif
 
 if HAS_CPUMINE