diff --git a/sysdep/glpk.mk b/sysdep/glpk.mk
index 614cebedb1e3ee5f9de173a9f9fdcfb436674259..c63b4401f0665be02c8c01dff166853c5fe40f81 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