diff --git a/Makefile b/Makefile
index da24a29..739c1eb 100644
--- a/Makefile
+++ b/Makefile
@@ -58,6 +58,9 @@ ASM       = $(patsubst $(SRC_DIR)/%.c, $(BUILD_DIR)/%.s,$(wildcard $(SRC_DIR)/*.
 OVERWRITE:= $(patsubst $(ASM_DIR)/%-new.s, $(BUILD_DIR)/%.o,$(wildcard $(ASM_DIR)/*-new.s))
 OBJ       = $(filter-out $(BUILD_DIR)/main% $(OVERWRITE),$(patsubst $(SRC_DIR)/%.c, $(BUILD_DIR)/%.o,$(wildcard $(SRC_DIR)/*.c)))
 OBJ      += $(patsubst $(ASM_DIR)/%.s, $(BUILD_DIR)/%.o,$(wildcard $(ASM_DIR)/*.s))
+OBJ	 += $(patsubst $(SRC_DIR)/%.cu, $(BUILD_DIR)/%.o,$(wildcard $(SRC_DIR)/*.cu))
+
+
 CPPFLAGS := $(CPPFLAGS) $(DEFINES) $(OPTIONS) $(INCLUDES)
 
 # $(warning $(OBJ))
@@ -88,6 +91,11 @@ $(BUILD_DIR)/%.o:  %.s
 	$(info ===>  ASSEMBLE  $@)
 	$(Q)$(AS) $< -o $@
 
+$(BUILD_DIR)/%.o:  %.cu
+	$(info ===>  COMPILE  $@)
+	$(Q)$(CC) -c $(CPPFLAGS) $(CFLAGS) $< -o $@
+	$(Q)$(CC) $(CPPFLAGS) -MT $@ -MM  $< > $(BUILD_DIR)/$*.d
+
 .PHONY: clean distclean tags info asm
 
 clean:
diff --git a/src/force.cu b/src/force.cu
index ad57668..ca7ec3d 100644
--- a/src/force.cu
+++ b/src/force.cu
@@ -82,8 +82,6 @@ double computeForce(
     MD_FLOAT* fz = atom->fz;
 #ifndef EXPLICIT_TYPES
     MD_FLOAT cutforcesq = param->cutforce * param->cutforce;
-    MD_FLOAT sigma6 = param->sigma6;
-    MD_FLOAT epsilon = param->epsilon;
 #endif
 
     for(int i = 0; i < Nlocal; i++) {
@@ -103,9 +101,6 @@ double computeForce(
         MD_FLOAT xtmp = atom_x(i);
         MD_FLOAT ytmp = atom_y(i);
         MD_FLOAT ztmp = atom_z(i);
-        MD_FLOAT fix = 0;
-        MD_FLOAT fiy = 0;
-        MD_FLOAT fiz = 0;
 
 #ifdef EXPLICIT_TYPES
         const int type_i = atom->type[i];