Fix missing space in Makefile

src/Makefile

@@ -44,7 +44,7 @@ endif
 ifeq ($(MPI), 1)
 HIPCUFLAGS += -DMPI_SUPPORT -I${MPI_HOME}/include
 HIPLDFLAGS += -L${MPI_HOME}/lib -lmpi
-else ifeq($(MPICH), 1)
+else ifeq ($(MPICH), 1)
 HIPCUFLAGS += -DMPI_SUPPORT -I/usr/include/mpich
 HIPLDFLAGS += -L/usr/lib -lmpi
 endif