diff --git a/apps/arweave/c_src/Makefile b/apps/arweave/c_src/Makefile
index 2e74b096c..12296d948 100644
--- a/apps/arweave/c_src/Makefile
+++ b/apps/arweave/c_src/Makefile
@@ -57,13 +57,15 @@ else ifeq ($(UNAME_SYS), Linux)
 endif
 
 ifneq (, $(shell which pkg-config))
-	CFLAGS += `pkg-config --cflags openssl`
-	CXXFLAGS += `pkg-config --cflags openssl`
-	LDFLAGS += `pkg-config --libs openssl`
+	CFLAGS += $(shell pkg-config --cflags openssl)
+	CXXFLAGS += $(shell pkg-config --cflags openssl)
+	LDFLAGS += $(shell pkg-config --libs openssl)
 endif
 
 C_SRC_DIR = $(CURDIR)
 
+SECP256K1_CFLAGS = $(CFLAGS)
+SECP256K1_LDLIBS = $(LDFLAGS)
 CFLAGS += -fPIC -I $(ERTS_INCLUDE_DIR) -I $(ERL_INTERFACE_INCLUDE_DIR) -I /usr/local/include -I ../lib/RandomX/src -I $(C_SRC_DIR)
 CXXFLAGS += -fPIC -I $(ERTS_INCLUDE_DIR) -I $(ERL_INTERFACE_INCLUDE_DIR) -I ../lib/RandomX/src -std=c++11
 LDLIBS += -L $(ERL_INTERFACE_LIB_DIR) -L /usr/local/lib -lei -lssl -lcrypto
@@ -118,8 +120,8 @@ $(VDF_OUTPUT): $(VDF_OBJECTS)
 
 SECP256K1_SOURCES = $(wildcard $(C_SRC_DIR)/*.c $(C_SRC_DIR)/secp256k1/*.c)
 SECP256K1_OBJECTS = $(addsuffix .o, $(basename $(SECP256K1_SOURCES)))
-SECP256K1_CFLAGS = -fPIC -I $(ERTS_INCLUDE_DIR) -I $(ERL_INTERFACE_INCLUDE_DIR) -I /usr/local/include -I $(CURDIR)/../lib/secp256k1/src -I $(CURDIR)/../lib/secp256k1/include -I $(C_SRC_DIR)
-SECP256K1_LDLIBS = -L $(ERL_INTERFACE_LIB_DIR) -L /usr/local/lib -lcrypto
+SECP256K1_CFLAGS += -fPIC -I $(ERTS_INCLUDE_DIR) -I $(ERL_INTERFACE_INCLUDE_DIR) -I /usr/local/include -I $(CURDIR)/../lib/secp256k1/src -I $(CURDIR)/../lib/secp256k1/include -I $(C_SRC_DIR)
+SECP256K1_LDLIBS += -L $(ERL_INTERFACE_LIB_DIR) -L /usr/local/lib
 SECP256K1_OUTPUT ?= $(CURDIR)/../priv/secp256k1_arweave.so
 
 $(SECP256K1_OUTPUT): $(SECP256K1_OBJECTS)