diff --git a/sysdep/glpk.mk b/sysdep/glpk.mk
index b577ddf6deb9284e1db5f48e9617415c938136f5..807ffd0e654944f280279c977ba4f3c8ed7f0346 100644
--- a/sysdep/glpk.mk
+++ b/sysdep/glpk.mk
@@ -35,7 +35,7 @@ DEPEND_USE+=		glpk
 DEPEND_ABI.glpk?=	glpk>=4.36
 
 SYSTEM_SEARCH.glpk=	\
-	include/{,glpk/}glpk.h \
+	include/glpk/glpk.h \
 	lib/libglpk.so
 
 SYSTEM_PKG.Linux-fedora.glpk=glpk-devel