diff --git a/Makefile b/Makefile
index 4bcd163..339a773 100644
--- a/Makefile
+++ b/Makefile
@@ -66,7 +66,7 @@ GIT_DIRTY ?= $(shell test -n "$$(git status --porcelain)" && echo "-dirty")
 # Note: can't use ?= for FC because GNU Make defaults to f77
 FC        = gfortran
 LD        = gfortran
-FFLAGS   += -O3 -J$(OBJDIR) -I$(INCDIR) -ffree-line-length-none
+FFLAGS   += -O3 -J$(OBJDIR) -I$(INCDIR) -ffree-line-length-none -fPIC
 CPPFLAGS += -DREVISION=\"$(GIT_REV)$(GIT_DIRTY)\" -DPREFIX=\"$(PREFIX)\"
 
 # Static build options