diff --git a/src/plugins/acct_gather_energy/rapl/Makefile.am b/src/plugins/acct_gather_energy/rapl/Makefile.am
index a92dc51288ae077328876c32446a1854f63a87bf..a4555d55f2bfea2bf4f57da6cbae0fcd5c998545 100644
--- a/src/plugins/acct_gather_energy/rapl/Makefile.am
+++ b/src/plugins/acct_gather_energy/rapl/Makefile.am
@@ -13,4 +13,4 @@ acct_gather_energy_rapl_la_SOURCES = acct_gather_energy_rapl.c \
 	acct_gather_energy_rapl.h
 
 acct_gather_energy_rapl_la_LDFLAGS = $(SO_LDFLAGS) $(PLUGIN_FLAGS)
-
+acct_gather_energy_rapl_la_LIBADD  = -lm
diff --git a/src/plugins/acct_gather_energy/rapl/Makefile.in b/src/plugins/acct_gather_energy/rapl/Makefile.in
index 8704a2ca2913089570b55e4915ba727a17097789..0f72f09d419e9c4d5bd7ba7774d8b42509388b7b 100644
--- a/src/plugins/acct_gather_energy/rapl/Makefile.in
+++ b/src/plugins/acct_gather_energy/rapl/Makefile.in
@@ -378,6 +378,7 @@ acct_gather_energy_rapl_la_SOURCES = acct_gather_energy_rapl.c \
 	acct_gather_energy_rapl.h
 
 acct_gather_energy_rapl_la_LDFLAGS = $(SO_LDFLAGS) $(PLUGIN_FLAGS)
+acct_gather_energy_rapl_la_LIBADD  = -lm
 all: all-am
 
 .SUFFIXES: